Landen Stilwell is a level 23 human located in a cell to the left of Sorcerer Ashcrombe's own cell — in the dungeon of Shadowfang Keep. He was added as part of the Blood-Tempered Ranseur quest chain for blood elf paladins. He is presumably related to Jordan Stilwell — who himself gives Alliance paladins the quest to collect the components for Verigan's Fist.
See Shadowfang Keep NPCs.
According to information provided to the Blood Knight Order by the Forsaken, Stilwell—presumably a blacksmith in Baron Silverlaine's service as is Jordan—secretly smuggled a crate of bloodforged ingots into the Keep and hid them in the stables. When Silverlaine was toppled by Archmage Arugal and his worgen, Stilwell was placed in Shadowfang's dungeons. Unless you are a blood elf paladin seeking this quest, he will warn you to stay away from him — he claims to be cursed. This proves to be true once Stilwell reveals the location of the ingots...he transforms into a worgen himself.
- "Stay away from me, <race>! There's no telling when the sickness will take me again. Just leave me alone before it happens again."