i had a lovely trip in that old practice bus. she was quite a decent old thing and i let her rip, all out, as long as the daylight lasted.

i had half expected no. 14 would have been sent up in pursuit, but i had too good a start to trouble about that and was a trifle disappointed that this was realized at ellendorf. it would have been rare fun to have had a game of chivy chase over dutch territory; quite good sport; but i had to travel without escort.

in the language of the communiqués, there was "a certain liveliness" as i crossed the frontier. the dutchies could see the german crosses on the planes and a couple of archies expressed their resentment at the trespass; but i was then too high up for anything to ruffle my feathers, and the storm in a teacup was soon left far behind.

about dusk i went down to spy for a landing-place, spotted one near a railway station, and decided in its favour out of consideration for harden. he had been very decent and unwittingly had done me such a really good turn, that it was only fair to return the bus to him.

lots of people had seen me, of course, and when i landed i had quite a reception at the hands of the police, some soldiers and other gapers, all of whom very naturally mistook me for a german officer. i was arrested amid much fussation and great babble of tongues and hauled off to the mayor of the town, after having arranged for the safe-keeping of the machine.

he was a fat jovial little man with twinkling, merry eyes, and when i told him my story, he laughed over the telephone incident until the tears literally streamed down his cheeks and i feared he'd have an apoplectic fit.

he was anglophile to the finger-tips, made me consent to remain the night in his house, promised to see to the return of the bus, and found me a rig-out of clothes; but stuck when i suggested the return of vibach's uniform also. he declared that nothing should induce him to part with such a delightful memento of the incident.

i spent a jolly evening with him. he brought in a few congenial friends and i had to tell the story over again, to the running accompaniment of shouts of laughter, prodigalities of schnapps, and comments on the germans which would have meant ages of penal servitude if uttered on the other side of the frontier.

most of his friends turned up at the station the next day to see me off to rotterdam; and the train steamed off amid a storm of cheers, waving of hats, and cries of good luck. then some one started "god save the king," which they were all yelling at full lung power until i was out of hearing. i might have been his majesty himself, judging by the enthusiasm; and my fellow passengers looked as if they thought i was some important big-wig.

i reached rotterdam late in the afternoon, got the name of nessa's hotel after a little trouble at the consulate, and was going to 'phone to her, when an irresistible temptation seized me.

i was fearfully bucked over my lucky escape and i simply could not help trying a last wheeze with her as a good wind up. i hunted up a good barber's shop, bought a black, glossy-haired wig and a toothbrush moustache and imperial to match, darkened my eyebrows and made up with a few wrinkles and little artistic touches of the sort.

it was quite a good disguise; and a pair of black cotton gloves, two sizes too large, and a sort of lumpy gamp umbrella helped to suggest the character i had in my mind. then i scribbled on a dirty piece of carefully crumpled paper a note introducing myself.

"you can trust the bearer, van heerenveen by name, a true friend in need to us both. jack."

i went to the hotel in the dusk and sent in the name, saying i wished to see her on important private business; a tip secured me the sole use of what was called the reception saloon, a dingy little room with one window; i dimmed the already poor light by drawing the blind half down, and chose my seat so that my back should be to it.

i had a qualm and nearly gave the show away when i saw the trouble and anxiety in her dear pale face; but i checked the impulse, knowing how delighted she would be the instant she recognized me, and what laughs we should have over it together in the delicious afterwards.

she was intensely puzzled by the odd figure i cut, but didn't spot the disguise, although she stared hard enough to see right through me. her nervousness at such an unexpected visitor helped to blind her sharp eyes.

she paused on the threshold with a start and a frown of concern and perplexity. "you wish to see me, sir? i could not quite catch your name from the servant," she said in german.

"van heerenveen is my name, madam," i replied. i was chiefly afraid that my voice would betray me; so i spoke slowly, made a big mouthful of the name, deepened my tone and put a little husk into it, talked out of the side of my mouth, and rolled out in deliberate guttural gibberish what i intended her to take for a question in dutch.

"i do not speak dutch, sir; only english, german, and french."

i nodded slowly and made a little play with the loose finger-tips of my ridiculous gloves. "will you not sit down, if you please?" i said in german. "do not be alarmed, i beg you. there is no need, if you are miss nessa caldicott."

she had been holding the door half open and now closed it and sat in the chair i had placed in readiness, and i sat on the opposite side of the room at a safe distance.

"i am miss caldicott, of course."

"it is necessary for me to be quite sure of that, madam. have i your permission to ask you a few questions?" the voice had passed muster all right, and, as she was close to the door and i so far away, her anxiety soon gave way to curiosity. she was absolutely puzzled.

"certainly, sir."

"you have come from germany? is that so?"

"yes, i arrived yesterday."

"may i ask for your passport, if you please?"

she started. "why? as a matter of fact i haven't one; but i am known at the british consulate here. they suggested my coming to this hotel."

"no passport? umph!" i grunted with a solemn wag of the head. "is it so that you came from berlin and left there somewhat hurriedly?"

"oh, yes. i was there at the outbreak of the war and they meant to send me to an internment camp; i ran away."

"umph!" i grunted again, fingering my imperial with my glove monstrosities; a gesture which she noticed with a flickering smile. "were you alone, madam?"

she hesitated. "no; but i cannot say more than that." staunch little beggar, she wouldn't give me away until she knew more.

"you must speak frankly to me, madam. i know the person who accompanied you. i ask you because i must be certain who you are."

she wasn't to be drawn by that. "i must know first why you come to me," she said with one of her quick head gestures.

"i come as a friend, madam."

"pardon me, but how am i to know that?"

i pushed her hard, but nothing would induce her to give me the name. "very well, i will try another course. there were certain incidents on the journey. you will tell me them?"

"there was a collision and the train was wrecked."

"but before that?"

again she jibbed and would not utter a syllable to bring me into it. it took all my restraint to refrain from making a dart forward to take her in my arms.

"well, what occurred afterwards, then? how did you leave germany?"

she thought for a second or two. "i can tell you that. i was brought over the frontier in an aeroplane and the pilot saw me afterwards to the station at almelo, and from there i travelled here."

vandervelt had kept his word loyally. "you will tell me that man's name, madam?"

"i cannot do that. he treated me with the greatest kindness and consideration and asked me not to do so."

"was the name vandervelt, madam?"

"how do you know that?" she rapped quickly.

"it is enough that i do know it and that you were known to him as the sister of a man who called himself hans bulich."

her eyes widened in astonishment. "who are you?" she asked; and i made sure she had begun to suspect, so intent was her stare. if the room had not been so gloomy she would certainly have seen through the disguise.

"i am satisfied," i replied, holding my head down while i fumbled in one of my gloves and took out the note i had scribbled. "this is from hans bulich."

dear heart, how excited she was! she sprang up eagerly and rushed across as i held it up, her hands trembling and the tears of joy in her eyes. "give it me, please, give it me," she cried shakily. "is he safe? is all well? oh, mr. heerenveen, do—do tell me everything."

"quite safe, madam," i managed to reply, for i was fast getting as excited as nessa herself.

"oh, thank god for that! then you have seen him since i left? where is he? still in lingen? please don't keep me in suspense."

"he is in holland, madam. i crossed the frontier with him."

"and you've come to take me to him, of course? oh, you are indeed what he says, a friend. can't we go now, this instant? i am ready. you're sure he's not in any trouble? do tell me, please, at once."

"he is not in trouble, but he does not wish me to take you to him, madam. there is something you must learn first. you know that he is suspected of murder; i do not wish to call him a scoundrel——"

"scoundrel indeed! i should think not," she cried, blazing with indignation. "he is one of the noblest——"

i couldn't have her saying this sort of thing under false pretences, so i stopped her by waggling one of my ridiculous gloves protestingly. "stay, madam, stay, i cannot hear that," i exclaimed. "i have still something to show you. permit me;" and i went to the end of the room, stood with my back to her, and under pretence of fumbling in my pockets, i pulled off the moustache and imperial. "if you knew what he is doing at this moment, madam, you also might be tempted to call him a scoundrel."

"never! never!" she exclaimed almost fiercely.

"then i must decline to take you to him at all!"

"why? in heaven's name, why?"

"because i'm here already, of course," i replied as i whipped off my wig and faced round.

she was petrified for a second, and then with a glad cry made a rush at me. "jack! jack! then you are a scoun——"

"didn't i say you'd call me one?"

"but i didn't; i stopped halfway. oh, jack, how mean of you! and i've been talking to you all this time and——"

i stopped her halfway that time. you can guess how. and it was quite a long time before we could get over our rapturous excitement and settle down to the story of my escape.

how we laughed at it all together! what lovely little interludes there were every now and then! what innumerable questions she had to ask, ferretting out every detail! how we went over it again and again! then back to the first part of the journey when we had been together! how we laughed lightly, now that they were over, at the difficulties and risks which had seemed so real in the lassen period! and how we discussed, with eager smiling perplexity, the still unsolved puzzles!

we were just two happy kids together. the hours slipped away like magic and we hadn't even begun to think of our plans for getting to england, when a servant came in to say that the hotel was being closed for the night, and i had to rush off in search of a bed.

i found out the next morning that a steamer was leaving in the afternoon and booked our passages, before going to nessa. she was writing the good news to rosa when i arrived and told me that vandervelt had promised to take her letters on his next trip and post them in germany, so as to dodge the censor.

i thought of some to write also. one was to von gratzen, explaining that i was not lassen, but an englishman; but not giving him my name. another was to harden, telling him that his aeroplane was being returned and asking him to forward an enclosure to captain schiller.

"dear captain schiller,—

"i am the 'desperate ruffian' with whom you had that interesting chat over the 'phone the day before yesterday. i wish to confirm what harden has probably told you, that after your first talk with him, the rest of the conversation was entirely with me. i am most grateful to you for having warned me that the affair with lieutenant vibach—a most offensive bully, by the way—was discovered sooner than i had expected. naturally it increased my wish to get away and made it impossible for me to satisfy your eager desire to make my personal acquaintance at ellendorf. that eagerness, combined possibly with your excitement and temper, no doubt prevented your detecting the difference in the two voices. your characteristically national dulness and gullibility will remain an abiding joy to me. you have, however, the satisfaction of knowing that you stopped my bringing away the new type of aeroplane. but the old one served my purpose well enough, for it carried me out of your country and so out of your reach. we are not likely to meet again, unless the fortune of war should bring us together on one of the fronts, when i shall be pleased to tell you the name of the 'desperate ruffian.'"

there was no time for more letters as we had to hurry to the consulate to clear up things there to enable us to avoid trouble on landing in england.

we had a smooth passage disturbed by neither mine nor submarine. we scarcely ceased chattering together the whole time, discussing two topics chiefly—the question of our marriage and the riddle of von gratzen's conduct. the first was settled a fortnight later to our mutual satisfaction, and we went to ireland on the honeymoon in order to send the promised sprig of shamrock to our warm-hearted irish friend at massen.

the von gratzen riddle was not solved until three months later when i was home on a week's leave and received a german newspaper from switzerland containing a marked paragraph. von erstein had shot himself sooner than face the charge of having murdered anna hilden.

i handed it to nessa, who dismissed it with, "serves him right," and then drew attention to some little marks and dots scattered about the same page. "i'm sure they mean something," she declared.

i laughed at the idea and chipped her about it.

but she was right and puzzled over them until she found it out. the marks were microscopic numbers under various words and letters, and when she had written them down she read out the result.

"you did not deceive me. you are the image of my dear old friend, your father. von g."

the von gratzen riddle was solved at last.

and didn't nessa chortle. "what did i tell you, jack!" she cried, flourishing the paper triumphantly. "the old fox! he knew you all the time and you imagined you were so clever. poor jack!"

i couldn't stand this, of course; so i punished her.

we were still very much lovers, and you can perhaps guess the nature of the punishment when i tell you that it made her blush, disarranged her hair, and prompted the question whether i wished every one to think we were still honeymooning.

of course i said yes, and punished her again.