Arhu's Failed Experiment is a side quest acquired in Cyseal. Starting The Fabulous Five side quest is a prerequisite.After speaking to Mendius to trigger The Fabulous Five, you need to go upstairs in the legion headquarters to speak to Arhu, who has polymorphed himself into a cat.Ask him about his failed experiment to trigger this quest. He asks that you stop his robot (which is your first assignment from the Fabulous Five anyway).Arhu gives you a remote control, then tells you to grab the manual on how to use it. Hold ALT to bring up tool tips of all the items in the room. Look for the manual near the top-right of the screen.fter speaking to Mendius to trigger The Fabulous Five, you need to go upstairs in the legion headquarters to speak to Arhu, who has polymorphed himself into a cat. Ask him about his failed experiment to trigger this quest. He asks that you stop his robot (which is your first assignment from the Fabulous Five anyway).