Presently, as though from a great distance, the cry was repeated.
Whether from above or below no one could have told.
Indeed, it seemed as much as anywhere to come from out of the wall itself.
Frank remained silently waiting.
Presently the great iron door swung slowly back, and a boy's head appeared in the opening.
"Is that you, Frank Mansfield?"
"Yes. Is that you, Jerry Buck?"
"Slide in, young feller," said the boy, in a whisper. "I'm a-scart to hold the door open long. After all that happened last night I'm expecting every minute that some one will catch onto our hole in the wall."
His sentence was completed within the old tomb itself, for Frank had entered at the first word, the door being closed behind him and securely barred.
"Come up to the den," said Jerry, leading the way up the steps. "Most of the fellers is in to-night and are abed long ago. I know'd you'd keep your promise and come, so me and Barney sat up to let you in."