From the publisher:
Debased, mongrel descendants of humans enslaved by goblins centuries ago, half-goblins lurk in the deepest unknowable reaches of the Tangled Wood. Hateful and spiteful creatures, they worship fell powers and sacrifice those falling into their clutches to venerate their dark protector. Stealthy and cunning, they skulk about civilisation’s fringe weaving terrible plots to destroy those threatening their precarious existence.
Half-Goblins of the Tangled Wood includes:
Five new feats
Two new spells
Four new magic items used by powerful tribal members
16 stat blocks (ranging in CR from 1/2 - 9)
Details of the race’s fell lord, Braal (NE god of hate, malice and revenge)
You can check out more details of half-goblins in The Lonely Coast (a free mini-campaign setting) or pit them against your PCs in Retribution.