Venom 20 Drop Confirmation Hello Thieves. I don't know if this is common knowledge to you all or not, but I thought I'd let you all know in case any of you were wondering. The Mastery Book which reads: "[Mastery Book] Venomous Star/Venomous Stab" (the 20 one) drops from the monster named Iruvata in Neo City. I picked it up there yesterday. Again, sorry if this is already well-known. Just throwing it out there in case it's not.