Seventeen-year-old Genesis Lee has never forgotten anything. As one of the Mementia small group of genetically-enhanced humansGena remembers everything with the help of her Link bracelets, which preserve memories perfectly. But Links can be stolen, and six people have already lost their lives to a memory thief, including Genas best friend.
Anyone could be next. Which is why Gena is less than pleased to meet a strange but charming boy named Kalan who claims that theyve not only met, but that Gena knows who the thief is.
The problem is, Gena doesnt remember Kalan, she doesnt remember seeing the thief, and she doesnt know why shes forgetting things or how much else she might forget. As growing tensions between Mementi and ordinary humans drive the city of Havendale into chaos, Gena and Kalan team up to search for the thief. And as Gena loses more memories, they realize they have to solve the mystery fast.
Because Genas life is unhappening around her.