Cripes helped Arx and Iggy discover that the whisperfish, not Don Leo, were behind the ravaging of his factories and submarines. He wanted to catch them all and send them to Cryptos to be eaten, but Teggs told him to leave them alone and the cryptoclidus reluctantly agreed. It was also Cripes who took Don Leo back to Liopolis under the condition that he behaved himself once he was home safely.