Purple Book of Monster Tongues
RelicLand of Eem Core Rulebook · p.229
Open source p.229The owner can speak and Parley with critters, as well as identify a critter's Vulnerabilities. Spend 5 XP: Each session, may turn a hostile critter Goon neutral.
Penned by the famous monster wrangler, Kyratha Namb. She is said to have collected the "greeting" of every monster in two purple volumes.