The GPS leads them to a house that only exists when the storm breaks. No road sign, no listing, no trace of it on any map - and yet it's always there, waiting, the moment the sky turns black. Inside, three chairs sit at a table, each one set with a name already written on it. Ethan Blackwell, Mara Whitlock, and Daniel Cross came looking for a shortcut through the storm. What they found was an invitation nobody sent, and a house that has been expecting them for far longer than they think.