"Guv'nor!" he said. "We've trapped 'em beautiful! I know that place—I've worked in there in my time. I know a way into it, from the back—we'll get in that way and see what's being done. 'Tain't worked no longer, that sail-loft—it's all falling to pieces. But first—help!"

"How are we to get that?" asked Copplestone, eagerly.

"I'll go it," replied Spurge. "I know a man just aback of here that'll run up to the town with a message—chap that can be trusted, sure and faithful. 'Bide here five minutes, sir—I'll send a message to Mr. Vickers—this chap'll know him and'll find him. He can come down with the rest—and the police, too, if he likes. Keep your eyes skinned, guv'nor."

He twisted away like an eel into the crowd of workers and idlers, and left Copplestone at the entrance to the alley, watching. And he had not been so left more than a couple of minutes when a woman slipped past the mouth of the alley, swiftly, quietly, looking neither to right nor left, of whose veiled head and face he caught one glance. And in that glance he recognized her—Addie Chatfield!

But in the moment of that glance Copplestone also recognized something vastly more important. Here was the explanation of the mystery of the early-morning doings at the old tower. The footprints of a woman who wore fashionable and elegant boots? Addie Chatfield, of course! Was she not old Peter's daughter, a chip of the old block, even though a feminine chip? And did not he and Gilling know that she had been mixed up with Peter at the Bristol affair? Great Scott!—why, of course. Addie was an accomplice in all these things!

If Copplestone had the least shadow of doubt remaining in his mind as to this conclusion, it was utterly dissipated when, peering cautiously round the corner of his hiding-place, he saw Addie disappear within the old sail-loft into which Andrius had betaken himself. Of course, she had gone to join her fellow-conspirators. He began to fume and fret, cursing himself for allowing Spurge to bring him down there alone—if only they had had Gilling and Vickers with them, armed as they were—

"All right, guv'nor!" Spurge suddenly whispered at his shoulder. "They'll be here in a quarter of an hour—I telephoned to 'em."

"Do you know what?" exclaimed Copplestone, excitedly. "Old Chatfield's daughter's gone in there, where Andrius went. Just now!"

"What—the play-actress!" said Spurge. "You don't say, guv'nor? Ha!—that explains everything—that's the missing link! Ha! But we'll soon know what they're after, Mr. Copplestone. Follow me—quiet as a mouse."

Once more submitting to be led, Copplestone followed his queer guide along the alley.