The Fellowship of Puzzlemakers (2024) by Samuel Burr is a quirky cozy read about a young man whose adoptive mother dies, and, true to form, leaves him a puzzle to decipher. Will it lead him to his biological parents? Clayton, brought up in a house full of eccentric, elderly puzzlemakers, sets out on a journey to find out more about his past and ultimately find himself.
For readers who enjoy TJ Klune and Richard Osman.