'Doyle is one of my favourite writers, and The Lost Girl King is another breakneck adventure full of folklore and family love. Prepare to be transported!'
- Ross Montgomery, author of Costa-shortlisted and Waterstones Children's Book of the Month The Midnight Guardians
'Few do page-turning, high-stakes, and warm and witty adventure as well as Catherine Doyle, and The Lost Girl King is a writer at the height of her powers. You won't want to put it down!'
- Kiran Millwood Hargrave, award-winning author of the Waterstones Children's Book Prize, Waterstones Children's Gift of the Year and the British Book Awards' Children's Book of the Year
'Nobody writes peril, wit and wonder as well as Catherine Doyle. The Lost Girl King is real magic - a novel brimming with the perfect balance of charm, humour and just the right amount of poetry in its prose. Doyle is a modern Diana Wynne Jones'
- Dave Rudden, author of Irish Children's Book of the Year Knights of the Borrowed Dark
'A thrilling adventure - loveable characters, magical folklore and a seriously scary villain. Truly one of the best fantasy stories I've ever read.'
- A.F. Steadman, author of Skandar and the Unicorn Thief
'A glorious gulp of a summer adventure'
- Piers Torday, author of The Last Wild
'Beautifully written, breathlessly exciting, and full of heart and humour, this is an epic adventure unlike no other. Be prepared to fall in love with The Lost Girl King'
- Louise O'Neill, author of Only Ever Yours
'What a fantastic story! I was utterly gripped throughout. I loved the Irish mythology, the snappy and humorous dialogue, the Greencloaks, the Fianna warriors, the peril and pace and dear old Gran. So much to savour! The way Catherine catapults the reader into the adventure from the off is just fabulous. Kids are going to adore this rollicking adventure'
- Abi Elphinstone