A new book from the winner of the Guardian Children's Fiction Prize When Tom meets Spider, he thinks he has found a friend for life. But their friendship doesn't run smoothly; Spider can't help being a naughty puppy, while Tom has to deal with his parents' separation, the pressure of a new school and a bully's unwanted attention. But when Tom and Spider become separated, they learn that they are far braver and more determined than anyone could have imagined. And in losing each other, they discover an unbreakable bond of love.

"Genuinely powerful and compelling" - Sunday Times, Children's Book of the Week

"A thoroughly gripping buddy movie begging to be made, in which the underdogs... school everyone in true grit and loyalty" - Observer, Children's Books of the Year

"Mulligan doesn't duck the cruelty of the natural world and there are some pretty tear-jerking scenes. The journey to reunite pet and boy turns into a tense thriller, narrated by Spider, in which the bonds of love and need triumph over all barriers, physical and emotional" - Daily Mail, Children's Books of the Year

"Poignant, funny, savage and ultimately uplifting, this is Mulligan at the top of his challenging form" - Guardian

"Dog is deliciously clever, deceptively simple, and a proper delight to read. I loved every page" - Lucy Coats

"A thrilling emotional rollercoaster of a tale" - Sally Gardner

"I loved Dog by Andy Mulligan. Spider, a dog undergoing an identity crisis, is a wonderfully rounded hero. His efforts to do the right thing put me in mind of a kind of canine Hamlet. With its calculating cats, philosophical foxes and gormless goldfish, there is much to enjoy about this book. Highly recommended" - Gareth P Jones, author of 'The Thornthwaite Inheritance'

"Ultimately, this book is about finding out who you are as you grow up. It's funny, but also deadly serious. A great read" - BookTrust

"Mulligan has created two flawed but overwhelmingly loveable characters in Tom and Spider and although there are plenty of real moments of darkness grappled within these pages, ultimately it's a book that celebrates love in all its different, complicated forms, and the obstacles it can help us overcome" - SCOOP

"An exciting adventure story that combines harrowing episodes with real warmth and heart, this is an irresistible tale of love, loyalty and reconciliation" - School Library Journal

"A uniquely dark adventure exploring trust, friendship and fear of rejection. Dog will give hope to readers both young and old" - Raring2go!

"At its heart is an unwavering message of friendship, trust and loyalty; of the bond between child and animal; and of how we all need somewhere to call home" - The Bookseller

"Brilliant... a heartwarming tale about a dog and his boy" - Bookwitch (blog)

"Charming and irresistibly unique characters" - The Sweet Review (blog)

"A great portrayal of loyalty and familial love" - The Bookbag

"Dog neatly captures canine and childhood psychology... Youngsters pestering for a four-legged friend will love this book... it has a good moral heart" - Entertainment Focus

"Good, original writing... remains grippingly readable right through to the end" - Books for Keeps

"I loved this exciting, descriptive book and would recommend it to older readers who like animals" - National Geographic Kids

"Dog is such a lovely, quirky story about a fantasy animal adventure. I love the way it addressed the issue of bullying both in terms of the bullying endured by Tom, but also the bullying inflicted by Spider the dog. It is a perfect book for UKS2 about friendship and identity. I loved it!" - Pleads Reads (blog)