"Come on, Abe," urged the major, for Abe quickly fell behind.

The heavy folding-doors were pushed aside with some effort. This opened the way into a small room like a butler's pantry.

"What was that?" asked Nat as a noise sounded.

"The shutting of a heavy door—and the light went with it," declared Major Dale. "Now to find the door."

Nat took the light from Abe, and flashed it up and down the heavily paneled walls.

"It's some secret passage, likely," said the major. "Every old house has one, I believe."

"What's—this?"

Nat had come upon a joining in the woodwork.

"That's it!" declared the major, examining the crack carefully. "But where might it open?"

All, even old Abe, felt the wall, up and down, covering every inch within reach.