600 lines. 12 nights. 1 killer. A ferry book you solve with a pencil. One chapter a night from Christmas Night to Twelfth Night, one winter of night crossings to strike, and the killer named on the twelfth night. each night's hint is printed upside down, and the answers are at the back. One sixpence. One drowned man. One line that never happened. Wrackmouth, a ferry town on the north-east coast of England, Christmas Night 1958. George Renwick, who had worked the river since he was twelve, is found dead in his chair with the gas on. The night before, in the Anchor, he had told the ferry's ‘I know which weeks.’ The weeks are in the winter of 1951–52. In Morris Bramwell's ferry book, one line marked paid, sixpence, has no sixpence behind a crossing that never happened. That same winter Tam Kerr, a casual on the coal-wharf gang, went into the river, and nobody could say which night. Post office clerk Nellie Tamsley has the book open on her kitchen table. On Christmas Night, at a window above the ferry landing, a young engineer from a Japanese ship in the dry dock was writing to his mother, far from home, noting the time in the margin as he went. How it works Read one night. 12 chapters, Christmas Night to Twelfth Night. Each ends with one boxed fact about the false line.Strike the ferry book. Put your pencil through every line the fact rules out, and check your count against Nellie's Notebook.Name the killer on Twelfth Night. Three lines are left, and three men each make one statement. Exactly one of them is false.Inside A 12-chapter mystery set in a north-east ferry town at Christmas 1958, with a prologue from 1952The ferry 600 lines of night crossings from December 1951 to February 1952, with the winter timetable and the night-fare rules12 Ferry a bonus logic grid after every night, growing from 3×3 to 5×5. They never touch the ferry book.Checkpoints, hints, a page-by-page count to check yourself after every night, a tracker for all twelve nights, and full answers night by nightExactly one solution, checked by a second, separate program. Every one of the 12 clues is needed.No app, no website, no download. A pencil is all you need. The Wrackmouth Registers, Book 2. Nellie Tamsley's earlier cases are Signed at the Gate and Post Early for Christmas. Each book is a complete case, and you can read them in any order.