When Second World War bombs start falling, twelve-year-old Eilidh Flett is evacuated to a place she's never heard of, to live with family she's never met. Stuck on a remote Orkney island, Eilidh's aunt gives her just two rules: don't touch anything that washes up on the shore, and never ever enter the island's lighthouse. But this seemingly dull island is full of surprises. With the help of a ghostly new friend, Eilidh begins to unravel the lighthouse's mysteries: long-kept family secrets, a hidden order of Nightkeepers, and a darkly dangerous magic that could change the world as she knows it. Does Eilidh have what it takes to become a Nightkeeper's Apprentice? This enthralling upper middle grade mystery explores destiny, loss and hope. Jude Reid's lyrical debut children's novel is inspired by the wild places and magical folklore of Scotland.