Sasspants the prickly detective guinea pig and Hamisher the hamster return in another graphic-novel mystery in the Guinea PIG, Pet Shop Private Eye series. This caper involves disappearing mice, and all clues point to a ghost as the culprit. Pet-shop owner Mr. Venezi continues to mix up his animals, this time deciding that his hamsters are gnomes. Astute young readers can follow the visual clues to solve the mystery as they read. Most of the fun lies in the relationship between the bookworm guinea pig and the enthusiastic hamster who wants to be her sidekick.

When mice disappear and a ghost is discovered in the pet shop, guinea pig Sasspants reluctantly agrees to help hamster Hamisher figure out what's happening. In weak attempts at humor, the animals are frequently unpleasant to each other and the shopkeeper mislabels the pets. The story is told through occasionally hard-to-follow comic panels. Facts about some animals are included.

The denizens of Mr Venezi's Pets & Stuff return for another hilarious mystery. Sasspants the guinea pig solved the mystery of the missing sandwiches in Hamster and Cheese (2010); now she's doomed to be thought a detective even though she has replaced the final "G" on her cage label. Hamisher the koala (actually hamster; Mr. Venezi is nearsighted and clueless, though not neglectful) loves being a sidekick, and he comes up with so many fake mysteries that Sasspants doesn't believe him when he has a real one. The mice are going missing one by one, and everyone's sure it's a ghost. Sasspants takes the case to get Hamisher off her back so she can get back to reading her much-loved books. Venable's second adventure does not disappoint. The celebutante chinchillas—er, camels—(one of whom has a pet mouse, "Mr. Sparkles," a la Paris Hilton's chihuahua) and the bubble-headed goldfish will inspire giggles. The deadpan expressions of Yue's pudgy animals colored by Hi Fi Design supply many of the laughs. A gem—please, tell us we'll be seeing more of Sasspants! (Graphic fiction. 6-11)