The Vambrace, Aspartame has his hands full between defeating the nightly onslaught of Undead and preventing occasional daylight breaches from the nearby Trade Tunnel. As such, he is not always in as sweet a mood as his name might imply.
The party encountered him briefly, requesting magical assistance from him for their journey towards Queensreich. As he was preoccupied, he gave them little consideration except to direct them towards The Sweets Twins' Scroll & Spell Shop.