Synopsis: "Timmi, Lilli and Marvin pit their wits against the master thief known only as The Shadow. The race begins to reclaim one of the world's most precious stolen artefacts."--Page 4 of cover.

Synopsis: A wave of jewelry thefts is committed in broad daylight and without any trace. When grandma's old and beloved family necklace vanishes, Timmi, Lilli and Marvin set out to catch the phantom known as the Invisible Thief.

Synopsis: Get on the case! Help famous detective Dr. J.L. Quicksolve and his son Junior solve some dastardly crimes. Interview suspects, evaluate their stories, examine crime scenes, and take note of strange details. Be on the alert for liars, tricksters, and unlikely alibis. * Did Mary Contrary kill her new husband? Or could it have been someone else? * Who was stealing cattle from McDonald's farm? To figure that out, you'd better follow the right truck…