Death Ray Butterfly

Inspector Stanley Mole doesn't mind a hard case, but things have gotten out of hand. There's a killer who escapes to a parallel universe, a frozen caveman with a bullet in his skull, a woman who claims to have witnessed her own murder, a toddler assassin, time-traveling dictators, and subatomic-particle sniffing butterflies. For Mole, this time more than just his reputation is on the line.