During an outing in the forest, Charlotte Markham, a recently hired governess, and the young Darrow boys whom she’s looking after find themselves crossing over into The Ending, the place for the Things That Cannot Die, where Lily Darrow, the boy’s mother has been waiting. She invites them into the House of Darkling, a dangerous place filled with enchantment and mystery. When the boys and their mother become trapped in the Charlotte learns the price you pay to save those you love.