The Hawk's eyes travelled furtively around the cellar. They rested hungrily on a spot in front of him, where, in the centre of the floor, but partially hidden by one of the workbenches, was the bolted trapdoor of the underground passage that led out to the wagon shed. He circled his lips with his tongue again, and furtively again, his glance travelled on—to the door at the head of the cellar stairs that had a massive bolt, and that, evidently swinging back of its own accord after the men had passed through, now hung just ajar—to a long, narrow window, most tantalising of all because it was wide open, that was shoulder high, just above the stonework of the cellar and evidently on a level with the ground outside.

And then suddenly the Hawk's lids drooped—to hide a quick flash and gleam that lighted the dark eyes. MacVightie had stooped, and throwing back the bolt, had lifted up the trapdoor.

“Hello!” he ejaculated. “What's this? Here, Lanson! It looks like a passage of some sort.” He was leaning down into the opening. “Yes, so help me, that's what it is!” He lowered himself hurriedly through the trapdoor, and his voice came back muffled into the cellar. “Come down here a minute, Lanson; they certainly had things worked out to a fine point!”

Lanson's back, as, following MacVightie, he lowered himself through the opening, was turned to the Hawk—and in a flash the Hawk's free hand had swept behind him under his coat to the concealed pocket in the back lining, and his eyes were thrust within an inch of the Ladybird's as he lowered his head.

“You understand?”—the Hawk's lips did not move, he was breathing his words, while a skeleton key worked swiftly at the handcuff on his wrist—“you understand? It's you or me! You make a sound to queer me, and I'll get you—first!

The livid face was contorted, working with impotent fury, but, perhaps for the first time that it had ever been there, there was fear In the Ladybird's burning eyes. The Hawk's hand was free now. Lanson's shoulders were just disappearing through the opening, and with a lightning spring the Hawk reached the trapdoor, swung it down, bolted it, and, running without a sound, gained the head of the cellar stairs, pulled the door gently shut, slid the bolt silently into place—and the next moment the Hawk, returning, darted to the window, swung himself up to the ledge, and vanished.


XX—“CONFIDENTIAL” CORRESPONDENCE

TWO days later MacVightie received a letter that had been posted the day before from a city quite a number of miles nearer the East than Selkirk was. In the left-hand, lower corner of the envelope, heavily underscored, was the word: “Confidential.” What MacVightie read, when he opened the letter, was this: