Wolf whistle

The Wolf whistle is a quest item given to the player by Rufus during the The Great Brain Robbery quest.

It is used to call Rufus to Fenkenstrain's Castle to collect a box of wooden cats (which also contains Dr. Fenkenstrain for delivery to Mos Le'Harmless).

Trivia

 * Trying to blow the whistle while wearing a fishbowl helmet reveals the message, "You should take your diving helmet off before you try to blow the whistle."