irresistible tone

Exploration Stage: Full Moon Tower
From: Rayden Storke
Description: This person claims to have been searching for his missing daughter. However, he began to feel the beast instinct growing stronger and stronger within him, and eventually he swore revenge on the person who had presented him to the "shadow". He decided to use a special whistle to have a psychic werewolf attack that person. The whistle is said to be around here somewhere. Could you please find it?
Completed: Okay, I am sure this is the real thing. I remember hearing that someone in Lower City has one of these...either way, I don't think we should blow this. There is no guarantee that psychic werewolves will not hear the sound and come rushing into the Upper City through the dungeons and cracks.