Katie Marsh is the bestselling crime fiction author of 'How Not To Murder Your Ex'. After writing romantic fiction, she turned her hand to cosy crime novels packed with humour and unforgettable characters. Her debut novel was a World Book Night pick and her books are published in fourteen languages.

She lives in the English countryside and loves strong coffee and pretending to be in charge of her children. She spent every childhood summer in the Lake District, which is the setting for her new cosy crime series, The Christie Sisters Mysteries. The books feature a dilapidated Lakehouse B&B, two sisters who haven't spoken for thirty years and a warring cat and dog. Perfect for fans of British cosy crime mysteries and amateur sleuths, the first book in the series, 'A Body in the B&B' is out in August 2026.