grin. "We've lost Tommy and Sandy, and the machinery of the mine has
been interfered with and the lower levels axe filling with water! Any
old time we start out to do things, there's a general mix-up!"

"Aw, quit growling and listen a minute," suggested George.

The boys listened only for a moment when the sound George had heard
was repeated. It was the call of the Wolf pack!





CHAPTER VI

THE BEAVER CALL


"That's Tommy!" exclaimed Will.

"I never knew that he belonged to the Wolf Patrol!" George observed.

"He might give the call without belonging to the Patrol!" urged Will.

The boys listened, but the sound was not repeated, although they
called out the names of their chums and gave the Beaver call
repeatedly.

"I guess it was a dream," George suggested.