He had made this move on impulse, without second thought, for Marishka's message as to her destination again justified his surmises and corroborated his fears as to her perilous situation. No other thoughts save those of her danger and her need of him had entered his head, and he had moved quickly, aware that any loss of time might be fatal to his hope of helping her. But seated in his compartment of the railway carriage, he had time to consider the note in all its aspects and in its relation to the extraordinary events of the day. There were but two other occupants of the carriage, an old gentleman with a white beard, and a young Hungarian officer—a vacuous looking youth in uniform—neither of them obviously of material from which secret service agents are made. After the experience at the Konopisht railway station, Renwick had no humor to be shot at in such close quarters, where the range would necessarily be deadly. He settled his automatic comfortably in his pocket, and after another and more reassuring inspection of his travelling companions he took out Marishka's note and examined it carefully.

The knowledge he possessed as to her situation suggested caution. An agency which could attempt to take his life would not be above forgery. Marishka's hand? There seemed no doubt of it. It was not difficult for Renwick to remember the peculiarities of her angular writing. The notes he had received from her, invitations, appointments, apologies—very often apologies, he remembered with a slow smile—dainty, faintly scented missives on gray paper which bore her crest, differed from this hurriedly written scrawl on a heavier paper which he had no means of identifying. Only upon closer inspection did he discover a hesitation in the lower curves and upward strokes of the letters which were not characteristic of the decisive Marishka.

Without being certain of its spuriousness, he came to the conclusion that because of its contents, the note was for the present to be regarded as an object for suspicion. Would Marishka—the Marishka who a few hours ago had treated him with such acidulous politeness—write, "I need you"? Could contemptuous silence be turned so quickly into urgent appeal? Her danger made such a transition a possibility, and if she was now ready to recant, all the more reason why he should obey. The one thing about the message which struck a jarring note was the request for secrecy under plea of personal danger. And if a forgery—why should his enemies speak of her personal danger? A lure! So obvious a one that only the veriest dolt could be deceived by it. The situation then resolved itself into this: He was invited to go to Sarajevo—if by Marishka, to save her from personal danger or abduction by her captor—if by the German agent, with Marishka as a lure, to be the victim of a conspiracy which planned either murder or imprisonment. And, however keen his own prescience, Renwick realized that the note had so far succeeded in its object. He was on his way.

He was too tired tonight to do the situation justice, for the blow at the back of his head had taken some of his strength, and he realized that without sleep his utility would be impaired for the morrow. And after a glance at his companions, he decided to chance it, and settling himself comfortably, he was soon heavily sleeping.

Renwick was awakened some while later by the young Hungarian officer's cursing as he stumbled over the Englishman's feet. A glance at his watch showed Renwick that he had slept four hours. It was dawn. Beside him at the further end of the seat the old man with the white beard still slept. Renwick glanced out of the window and found that the station was Vacz. They were twenty or thirty miles from the Hungarian capital. The morning was cool, and Renwick stepped down from the open door upon the platform and stretched his limbs, sniffing the air eagerly. He felt renewed, invigorated, and the ache at his head was gone. He had made no plans beyond the very necessary one of getting money at the British Consulate and taking the first train south. The difficulties in making proper connections, the probability that somewhere he must desert the railroad and beg, buy, or steal a motor car, and the ever present danger of a shot from a German agent confronted him, but in his early morning humor nothing seemed impossible. He would get through in some way and find a means of reaching Marishka! And if Marishka were already spirited away? He would find her and the green limousine chap with whom he would have a reckoning.

Impatient of the delay of the train, he took out his cigarette case and was about to smoke, when the warning of the guard was shouted, and he got into his carriage, followed by another traveler who clambered in at the last moment and sank into the seat opposite. As the train moved, the two men scanned each other in the light of the growing dawn which now vied with the flickering light of the overhead lamp in their compartment. The stranger was a very tall man in dark clothes, who gave an instant impression of long rectangularity. He had a long nose, a long upper lip which hung over a thin slit of a mouth which resembled a buttonhole slightly frayed by wear. His chin was long and square and, like his upper lip, blue, as though a stiff black beard were in constant battle with a razor. His eyes were large and regarded Renwick with a mild melancholy as he bowed the Englishman a good morning. Renwick nodded curtly. He had planned another nap and hardly relished sitting awake and staring at the sepulchral visitor. Where last night's weariness had sealed his eyes to the ever-present sense of danger, morning brought counsel of caution and alertness. The leanness of the huge intruder was of the kind that suggested endurance rather than malnutrition, a person who for all his pacific and rather gloomy exterior, could be counted on to be extremely dangerous.

In a situation where any man might prove to be his hidden enemy, Renwick was learning to be wary. And so upon his guard for any movement of hostility, he sat bolt upright and smoked his cigarette, puffing it indolently into the face of his solemn companion. Beyond the first greeting, no words passed between them, and the Englishman, more at his ease, looked out of the window at the low marshlands along the river and planned the business which brought him. Day came swiftly, and before the train reached the city the sun was up in smiling splendor, melting the pale fogbanks of the Danube valley beneath its golden glow.

At the Westbahnhof, Renwick got down, and bag in hand made his way to the railway restaurant for a cup of coffee. The keen morning air had made him hungry, and he breakfasted like a man who does not know where his next meal is coming from. It was not until he paid his check and got up from the table that he noticed his gigantic companion of the train doing likewise, but he gave the matter no thought, and getting into a waiting fiacre drove to the British Consulate to make some necessary arrangements, including the procuring of money for possible large expenses. The Archduke and Duchess, he discovered, had slept in their car, which had been shifted to a train that had left for the south in the early hours of the morning. The service on the road was none too good, except that of the Orient Express, which had gone through last night, but by haste Renwick managed to catch the nine o'clock train for Belgrade, planning to get off it at Ujvidek and trust to Providence for an automobile.

He was no sooner comfortably seated in his compartment and congratulating himself upon its emptiness, which would permit of opportunity for sleep, when the door was thrown open and his tall companion of the early morning solemnly entered. Renwick did not know whether to be surprised or angry, and finished by being both, glancing at the intruder through his monocle in a manner distinctly offensive. But the tall man if aware of the Englishman's antagonism gave no sign of it, clasping his cotton umbrella with large bony hands and gazing gloomily at the passing landscape.

An accidental meeting of two travelers bound in the same direction? Perhaps. But there was too much at stake for Renwick to be willing to take chances, and yet he could not kill and throw out of the window an entire stranger who looked like the proprietor of a small confectionery shop, in mourning for a departed friend. Of course there was nothing to be done, but the man's presence irritated Renwick. As the moments went on, and the man still silently stared out of the window, Renwick's choler diminished. The fellow was quite harmless, a person from whom murder and secret missions were miles asunder. If the man of the green limousine had foreseen that Renwick would take the nine o'clock train for Budapest and had set this behemoth upon him, the man would have made an attempt upon his life this morning in the ride between Vacz and the capital. And how, since the telegraph lines were closed to the German agent, could this person have been put upon the scent? It hardly seemed possible that this was an agent of Germany. And yet as the miles flew by, the stranger's silence, immobility and unchanging expression got on Renwick's nerves. He was in no mood to do a psychopathic duel with a sphinx.