What if the football hadn't gone over the wall? What if Hector had never gone looking for it? What if he hadn't kept the dark secret to himself? What if...? Then I suppose I would be telling myself another story. You see, the 'what if's' are as boundless as the stars. CONTAINS SOME STRONG LANGUAGE

Sally Gardner is a multi-award-winning novelist whose work has been translated into more than twenty-two languages. Her novel MAGGOT MOON (Hot Key Books) won both the Costa Children's Book Prize and the Carnegie Medal 2013, and was followed by THE DOOR THAT LED TO WHERE. Sally's genre-defying novel THE DOUBLE SHADOW (Orion) received great critical acclaim and was also longlisted for the Carnegie Medal 2013. THE RED NECKLACE (shortlisted for 2007 Guardian Book Prize) and THE SILVER BLADE, the film rights for which have been purchased by Dominic West, are set during the French Revolution. Sally also won the 2005 Nestle Children's Book Prize for her debut novel I, CORIANDER. She is also author of the popular Wings & Co Fairy Detective Agency series and TINDER, illustrated by David Roberts (Orion). Most recently she has published a novel for adults, AN ALMOND FOR A PARROT. Follow Sally at www.sallygardner.net or on Twitter: @TheSallyGardner