On Alexa's eighteenth birthday—the same day as her release from the correctional center she has been in for the past two years—an envelope secured with a wax seal is delivered and addressed to her with no sender. In this envelope lies a letter and a weirdly shaped key. But a key to what?

The writing on the letter seems so familiar to Alexa, but she can't accept the possibility—the possibility that it's from her mother. The same mother that she never got to know. The same mother who's been dead for eighteen years . . .

And with the possible involvement of a secret organisation that deals with 'artifact retrievals,' things are definitely about to take a turn for the weird.