Tree spirit

The Tree Spirit is a spirit that takes the form of a small white (completely white, monochromatic white, so white it looks flat white) tree. It also has the ability to generate a similarly monochromatic white deer, which it used to attract the party during its only appearance.
After the party rescued it from a Warforged lumberjack, it entrusted its child to Draven's care. It has not been seen since and is presumably still living in the woods near the road between Corso's Chasm and Ginaron.