Terry Pratchett meets Douglas Adams

Ned Spinks, Chief Thief-Catcher has a problem. Someone is stealing the Emperor's roses. But that's not the worst of it. In his infinite wisdom and grace, the Emperor magically imbued his red rose with love so if it was ever removed from the Imperial Rose Gardens then love will be lost, to everyone, forever. It's up to Ned and his band of motley catchers to apprehend the thief and save the day. But the thief isn't exactly who they seem to be, neither is the Emperor. Ned and his team will have to go on a quest defeating vampire mermaids, illusionists, estranged family members and an evil sorcerer in order to win the day. What could possibly go wrong?