Pip Pop's Find - The Prospectors, #1

Old prospectors Ahab and Gert, living on their mining base asteroid Valhalla, realise that their cat Pip Pop's youthfulness is related to goo coming from a crack in the wall of their store room.  The goo rejuvenates them, but when they share it with supply ship friend Seumas, and he is captured by space cannibal Sunny Bean, things quickly get scary.