In this—number three of the "Jack Russell: Dog Detective" chapter book series—Jack the canine sleuth finds that his friends' collars are going missing. So he "jack-jumps" into the case by "in-terrier-gating" witnesses and holding a "steak-out" (which involves watching suspects while eating at the same time). Kids will love this goofy dog jargon, which is sprinkled throughout the text, first shown in bold type and then defined in glossaries at the ends of chapters. "Appaws" is used for applause, "yip-notize" for hypnotize, "terrier-ize" for frighten, "dogwash" for nonsense. The text is easy to read, and the simple, line-drawn illustrations are very cute and nicely done. The use of "nose maps" (diagrams of what Jack is smelling) is especially clever. First published in Australia, this American edition still retains some foreign expressions that might have some readers slightly confused at moments. But most should find the "fuss and yaffle" and "nobbling," as well as the antagonist's eating of meat pies, to be charmingly Australian. All in all, fun stuff, especially for dog-lovers.