A cruise vacation becomes a fight for survival and sanity... Riley boards the cruise ship Aria with plans to steal her inheritance back from her wealthy uncle. But this isn’t the Aria from the brochure. It’s been replaced. The hallways bend in on themselves in impossible ways. Monstrous threats creep out of the off-limits Deck Two. And a stranger claims this has all happened before, in a skyscraper that appeared overnight. Riley must survive the haunted ship and solve its mysteries, or the Aria will claim her soul forever. They Cling to the Hull is the terrifying sequel to It Waits on the Top Floor, from the “unhinged imagination” of “one hell of a writer” (Shirley Jackson Award winner Daryl Gregory). This series is meant to be read in numerical order.