From WoWWiki

High Interrogator Gerstahn <Twilight's Hammer Interrogator> is a level 52 elite human found in the center of the Detention Block in Blackrock Depths. She is the only person in the prison area that holds a [Prison Cell Key] to all of the cells.

Spells and Abilities:

• Mana Burn
• Psychic Scream
• Shadow Shield: Shields the caster for a set amount of damage and deals shadow damage to anyone who strikes the shield with melee attacks.

Loot

Blackveil Cape Binds when picked up Back 38 Armor +14 Agility +6 Strength Requires Level 48	Enthralled Sphere Binds when picked up Held In Off-hand +3 Stamina +4 Intellect Requires Level 48 Equip: Increases damage and healing done by magical spells and effects by up to 16.	Kentic Amice Binds when picked up Cloth Shoulder 56 Armor +6 Spirit +13 Intellect +5 Stamina Durability 50 / 50 Requires Level 47 Equip: Increases damage and healing done by magical spells and effects by up to 14.	Greaves of Withering Despair Binds when picked up Mail Feet 218 Armor +10 Intellect +10 Stamina Durability 60 / 60 Requires Level 48 Equip: Increases damage and healing done by magical spells and effects by up to 11. Equip: Increases your spell hit rating by 8.
Prison Cell Key Binds when picked up Unique "Various runes and etchings cover the surface of the key."

Spritecaster Cape drop moved to Houndmaster Grebmar as of 1.10.

External links