Quelana Pyromancy Tome

The Quelana Pyromancy Tome is a key item in Dark Souls III.

Availability
Catacombs of Carthus - From the Demon Ruins bonfire, follow a nearby corridor that leads to a room with two Demon Clerics. Drop down and follow a passageway nearby containing several Hound-rats. Hitting the wall directly opposite to this corridor reveals an illusory wall (the wall can be identified by a blue glow). The corpse of a giant spider-humanoid lies behind it, along with the tome.

Usage
Giving the tome to Karla in Firelink Shrine unlocks the following pyromancies for purchase:
 * Fire Whip
 * Firestorm
 * Rapport

Trivia

 * The tome belonged to Quelana of Izalith.