Written for readers who have finished Book 1.
Assure is the national identity-and-payments credential at the centre of the story's near-future world — the app you carry and the green "Verified" tick that smooths your way through every door and checkout. Convenient, reassuring, and quietly indispensable, it is designed so the comfort is right there in the name. The cost of all that assurance is what the story slowly uncovers.