It will take more than a simple summoning circle to bring forth a felhunter for you to challenge.$b$bMy three acolytes and I will assist in creating the magic circles. You require a copy of the Tome of the Cabal, which has been lost to us for some time. It was written by the first group of warlocks to summon a felhunter unaided.$b$bPerhaps Krom Stoutarm can help you with this. An itinerant warlock these days, he spends his days hoarding ancient texts and skulking about the library in Ironforge.

Speak with Krom Stoutarm in Ironforge.