B is for Bigfoot is a novelette written by Jim Butcher. It was first published in the 2012 anthology Under My Hat: Tales from the Cauldron, edited by Jonathan Strahan. It was reprinted in the 2014 Butcher collection Working for Bigfoot and again in the 2018 collection Brief Cases.
Description[]
Strength of a River in His Shoulders is a Bigfoot who has a son, Irwin Pounder, by an archaeologist he met during a dig. When River learns that Irwin is being bullied at school, he worries about the boy's safety and hires Harry Dresden to investigate. Harry learns that Irwin's tormentors are under the protection of a svartalf who threatens to kill Harry if he interferes, but Harry finds a way for Irwin to solve the problem on his own.