“That’s where I jumped from!” exclaimed Fenn.
But this was not all. Down the cliff, out of the hole in the face of it, came tumbling a strong rope ladder, being fastened somewhere inside the hole.
“That how up get!” exclaimed Lem Sing, with a grin. “Now can up-go!”
“Sure we can ‘up-go’!” exclaimed Mr. Harkness. “Come on, boys,” and he began to ascend the ladder, which swayed rather dangerously.
CHAPTER XXX
THE DISCOVERY—CONCLUSION
The others followed, one at a time, leaving one of the detectives in charge of Lem Sing.
“Now, Fenn, lead the way,” called Mr. Hayward.