George and his friend are inseparable, but George isn't sure he believes in Ghost any more. He asks Ghost to prove he is real by weighing himself, having his photo taken and showing he takes up space. But the scales don't move, Ghost can't be seen in the picture and the water in the bucket doesn't spill when Ghost stands in it. Ghost can't be real. Or can he

Author Biography

Catriona Hoy is a science teacher and an author published by Lothian. Cassia Thomas was born and raised in London; with a pencil in one hand and a cup of tea in the other. She has always loved how illustrators are able to transport you into their own worlds, and so aspired to be able to do the same. Cassia drew (a lot) and grew (not very much) and finally did a Masters in Children's Book Illustration, at Anglia Ruskin School of Art. The course helped her realise her ambition to become a visual storyteller. Since then, she's twice been selected for the Cheltenham Illustration Awards, where her work has been exhibited alongside such artists as Shaun Tan.