The Tides of Shadow
Spineshank the Devil Thief
Leader of the interloper devils in Faerun
This mysterious devil is thought to have stolen a very powerful artifact that could threaten the sanctity of the Gates of the Moon, the realm of the goddess Selune. Her agents, and a band of adventurers have tried, unsuccessfully to capture and stop the demon, but he has proven to be rather intelligent and has eluded capture thus far. He is larger than the imps the heroes have previously fought and is known to be able to use the thousands of spines that cover his body as ranged weapons that explode and poison its victims.
UPDATE After tracking the devil to Wheloon, the heroes finally struck the killing blow before the devil could escape. Unfortunately his master, Dorian Dreadwind, did manage to escape and with the stolen artifact.