Whistle of WarningLevel 8 Uncommon

This small, unremarkable-looking silver whistle gives off a shrill noise when sounded.

Wondrous Item        3,400 gp

Power ✦ Encounter (Minor Action)

Each ally within 10 squares of you who can hear the whistle can shift 1 square and draw a weapon or retrieve an implement as a free action.

Published in Adventurer's Vault 2, page(s) 78.