Jewel and Thorn's adventures conclude in this thrilling climax to the Lowmoor trilogy. Desperate to stop the wicked Querne Rasp from collecting the final crystal to complete her collection, they find themselves drawn deep into the inner workings of an old and sinister church, fighting ice spiders and malevolent characters along the way. As always, Racky Jagger is as determined to thwart their plans but when he shares a revelation with Thorn, life changes irrevocably for both of them.