"No bigger than--that!" He pointed to the roof of the cabin.
Rod was figuring on the table.

Soon he looked up.
"According to Mukoki and the map we are at least two hundred and fifty miles from the third fall," he said.
Mukoki shrugged his shoulders and his face was crinkled in a suggestive grimace.
"Hudson Bay," he grunted.
Wabi turned from his steak in sudden astonishment.
"Doesn't the chasm continue east ?" he almost shouted.
"No.

She turn--straight north." Rod could not understand the change that came over Wabi's face.
"Boys," he said finally, "if that is the case I can tell you where the gold is.

If the stream in the chasm turns northward it is bound for just one place--the Albany River, and the Albany River empties into James Bay! The third waterfall, where our treasure in gold is waiting for us, is in the very heart of the wildest and most savage wilderness in North America.

It is safe.