Alastair is a children's author and puzzle creator. As a puzzle creator he wrote quite a lot of books of Sudoku and other puzzles for kids and grownups, and as an author he writes picture books and middle-grade fiction. Alastair lives in Edinburgh with his wife (who is lovely), two teenagers (who are lovely but very loud), and a cat named Maudie, who is yowling at him even though there is clearly food in her bowl, look, it's right there, look. His hobbies include writing and playing games on his phone when he should be writing. You can follow him on Twitter @alastair_ch, if you like.