In other places the thick cane makes an equally impenetrable barrier, and Sam needed all his knowledge of the forest to enable him to work his way southward at night through such woods as those.

The little party of wanderers sometimes found themselves apparently walled in in the pitchy darkness, with no possible way out but Sam's instinct, as he called it, which was simply his ability to remember the things he had learned, and to put two facts together to find out a third, always extricated them.

Once they found themselves in a swamp, where the water was about eight inches deep.

The underbrush, canes and vines made it impossible for them to see any great distance in any direction.
"Oh, I know we will never get out of here," whined poor little Judie, ready to sink down in the water.
"Yes we will, lady bird," said Sam cheerily.

"What's the good of having a big brother if he can't take care of you?
Tell me that, will you?
Keep your courage up, little girl, I think I know where we are.