One of the imps wanted for a bout of nuisance in Camp Tranquil has surfaced all the way in Coerthas. It must know there is a price to pay for shorting sheets, invading outhouses, fouling an officer's punch, and killing his batman. In the name of the Maelstrom, see through its beastkin guise and have the last laugh.
(Begin by surprising a wandering wisp with a "poke," then slay the glowing figure to acquire "luminous crystals." Use this item on beasts to see through their guises.)
Discover who is carrying the luminous crystals and slay the target.