Alva rushes through the trees in the dead of night with her sniffer wolf, Fen. Being out alone when there's a kidnapper on the loose is reckless, but if she ever wants to be an investigator like her Uncle Magnus, she'll need to be first to the crime scene. But what Alva discovers raises more questions than it answers, drawing her into a dangerous search for truth, and for treasure.

Join young investigator and shield maiden Alva as she goes a-viking around the medieval world in search of adventure! Alva clings to her sleeping wolf as the Viking longship pitches and rolls over the North Sea's crashing waves. Soon she will reveal herself as a secret stowaway, but only when there's no chance of turning back. This is her opportunity to put her shield maiden spirit to the test - exploring strange new lands, solving mysteries, and most importantly finding her father . . .