"I'm trying to think," said Johnnie. After a time he rose from the table and the two strolled out. Johnnie was still thinking. When the two arrived at Branch's quarters O'Reilly scrutinized the room as closely as he dared, and then sat for some time idly gossiping. Both men were under a considerable strain, for they thought it more than likely that hostile eyes were upon them. It gave them an uncomfortable thrill; and while it seemed a simple thing to burn that letter of introduction, they realized that if their suspicions were correct such a procedure would only serve to deepen their difficulties. Nothing they could later say would explain to the satisfaction of the authorities so questionable an act. The mere destruction of a mysterious document, particularly at this late hour, would look altogether too queer; it might easily cause their complete undoing. Inasmuch as his enemies were waiting only for an excuse to be rid of him, O'Reilly knew that deportation was the least he could expect, and at the thought his fingers itched to hold that letter over the lamp-chimney. Imprisonment, almost any punishment, was better than deportation. That would mean beginning all over again. While he was talking he used his eyes, and finally a plan suggested itself. To make doubly sure that his words would not be understood he inquired, casually: "Do you speak any foreign languages?" "Sure! Spanish and--hog Latin." In spite of himself O'Reilly grinned; then making use of that incoherent derangement of syllables upon the use of which every American boy prides himself, he directed Branch's attention to the tiles of the roof overhead. The reporter's wits were sharp; his eyes brightened; he nodded his instant understanding. The house had but one story, its roof was constructed of the common, half-round Cuban tiling, each piece about two feet long. These tiles were laid in parallel rows from ridge-pole to eave, and these rows were locked together by other tiling laid bottom side up over them. Where the convex faces of the lower layer overlapped, after the fashion of shingles, were numerous interstices due to imperfections in manufacture; more than one of these was large enough to form a hiding-place for a letter. Continuing to disguise his language, O'Reilly directed his companion to open the table drawer in which the unwelcome document reposed and to see that it was where he could instantly lay hands upon it in the dark. Branch did as he was told. For some time longer they talked; then they rose as if to leave the room. O'Reilly took his stand near the door and directly beneath the most promising crevice in the roof, which at this point was perhaps nine feet from the floor.