For one weekend every July, thousands of readers descend on the historic town of Harrogate in pursuit of mysteries, mischief and murder. In Murder in Room 166, twelve bestselling authors come together in honour of the 21st anniversary of the world's largest festival of crime writing, the Theakstons Old Peculier Crime Writing Festival. Curated and edited by former festival chair and awardwinning author Vaseem Khan, contributors include Mark Billingham, M.W. Craven, Elly Griffiths, Abir Mukherjee and Ruth Ware. From a locked-room mystery inspired by Agatha Christie's infamous disappearance at the Old Swan Hotel to a much-loved detective making an appearance at the festival bar, these razor sharp stories are inspired by the festival's rich history.