Quotation from: The Valley of the Moon

Written by: Jack London

He drew a deep breath and emitted a wild yell.

The result far exceeded any expectation he could have
entertained, and Saxon's heart leaped up in sheer panic. On the
instant the darkness erupted into terrible sound and movement.
There were trashings of underbrush and lunges and plunges of
heavy bodies in different directions. Fortunately for their ease
of mind, all these sounds receded and died away.