A ready-to-run fair-play detective mystery for KS2 (ages 8 to 11). Children read the evidence, weigh up witness statements, use a map and compare measurements to rule out suspects until only one answer is left. It is great for practising inference and the “which clue says so?” habit. The case, The Flying Sausage Dog: on Kite Day, Sir Biscuit the Magnificent, a prize-winning sausage dog kite, vanishes from its hook. There are six suspects, five hiding places and six clues. Who took it, and where is it hidden? What’s included (13 A4 pages, black and white, photocopiable): A one-page teacher guide for a 45-minute session, with support and challenge ideas Five group role cards: Recorder, Interviewer, Measurer, Map Reader and Evidence Sniffer The complete 6-page case (story, suspect cards, map, evidence, witness statements, elimination grids, three graded hints and a full answer explanation) A “Case Closed” certificate 12 extension questions with answers, covering inference, maths (m and cm conversion, ordering, subtraction) and writing and speaking (newspaper report, hot-seating) Light-touch National Curriculum (England) links for reading, spoken language, writing, maths, geography and PSHE World Book Day (Thursday 4 March 2027) costume ideas from everyday clothes, plus cut-out badges, a magnifying glass and a map template Every case has been checked by a computer solver, so it has exactly one answer and that answer can be reached from the clues alone. There is an optional free online answer checker that needs no sign-up and gives hints rather than answers (link on page 1). Free to print and copy for classroom use.