The Longbrush Glen was the home of a tribe of squirrels lead by Spruce Longbrush. The Glen was in the middle of Mossflower Woods and consisted of platforms, huts, and ladders that were built into the trees. Several times, Longbrush Glen was attacked by a tribe of savage pine martens called the Pineshadows. Wengle Brookrudder was told to go to the Glen in the dying breath of an old squirrel who had lived at the Glen when he was younger, but had moved away due to an argument with Spruce's father.