A notoriously scary ghost is supposed to haunt the ruined medieval castle where Sunny and his friends are spending the day. But when a troubling visitor arrives at the antique shop, it turns out the danger is closer to home than they thought . . .

The language and structure of the story are perfectly pitched to engage young readers whilst avoiding condescension. Indeed, there is plenty to entertain readers of all ages. The adventures related are enhanced by the wonderful illustrations. Along with the previous books in the series, this is a story of bravery and friendship that I highly recommend.

Alison Moore's first novel, The Lighthouse, was shortlisted for the Man Booker Prize and the National Book Awards (New Writer of the Year), winning the McKitterick Prize. Both The Lighthouse and her second novel, He Wants, were Observer Books of the Year. Her short fiction has been included in Best British Short Stories and Best British Horror anthologies, broadcast on BBC Radio 4 Extra and collected in The Pre-War House and Other Stories. Born in Manchester in 1971, she lives near Nottingham with her husband Dan and son Arthur. Ross Collins was born in Glasgow, Scotland quite a while ago. At that time would eat anything and resembled a currant bun. Ross still enjoys precariously swinging backwards on chairs. He lives in Glasgow with a strange woman, a small child and a stupid dog.