| Management number | 238687719 | Release Date | 2026/07/11 | List Price | US$8.40 | Model Number | 238687719 | ||
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<p>Marlo Quill is the kind of kid who notices things other people miss. When a mysterious wooden coin appears in her backpack after a school field trip, it draws her into the Lost & Found Bureau, a secret organization dedicated to tracking objects that carry powerful memories and unfinished stories.</p><p> </p><p> Alongside her new friends Gus, Pip, and the fiercely intelligent Tessa Vale, Marlo discovers that the coin is connected to the disappearance of Eli Rowan, a young investigator who vanished while pursuing an ancient mystery beneath their town. Following clues hidden in forgotten objects, abandoned records, and impossible places, Marlo begins uncovering a pattern that stretches back long before Bell Buckle existed.</p><p> </p><p> As the mystery deepens, Marlo must learn that the most important answers rarely come from the easiest questions. Filled with wonder, heart, humor, and adventure, Marlo and the Spiral Heart launches an unforgettable middle-grade mystery series about memory, belonging, courage, and the power of finding what has been lost.</p>
| Book format | Hardcover |
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| Fiction/nonfiction | Non-Fiction |
| Genre | Children's Books |
| Publication date | July, 2026 |
| Pages | 152 |
| Reading level | Grade 8 |
| Age range | 8 - 12 Years |
| Subgenre | Mysteries & Detective Stories |
| Series title | The Lost and Found Bureau Mysteries |
| Number in series | 1 |
| Edition | 1 |
| Publisher | Scott McPhee |
| Language | English |
| Is collectible | N |
| Binding type | Case Binding |
| Recording time | 0 min |
| Retail packaging | Single Piece |
| Assembled product dimensions (l x w x h) | 6.00 x 0.38 x 9.00 in |
| Assembled product weight | 0.82 lb |
| Bisac subject heading | Juvenile Fiction |
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