Lost Cat by Caroline Paul

Caroline Paul was recovering from a bad accident and thought things couldn't get worse. But then her beloved cat Tibia disappeared. She and her partner anxiously waited for his return, before resigning themselves to their loss. But weeks later Tibia waltzed back into their lives, and his owners were overjoyed. But where had their sweet anxious cat disappeared to? Had he become a swashbuckling cat adventurer? Did he love someone else more? His owners were determined to find out. Using diverse methods, they embarked on a quest to discover what their cat did when they weren't around