"Detective Nick Burkhardt of the Portland PD is more than familiar with strange happenings--as a Grimm, he has gone head to head with many creatures that were thought to be the stuff of children's fairy tales. Not only are these creatures real, but they've kidnapped his mother in an effort to obtain an artifact of great power: the Coins of Zakynthos. Tossed into a globe-spanning journey along with his partnet, Detective Hank Griffith, and his Wesen friend Monroe, Nick suddenly finds himself in the middle of a canturies long war. Forging a reluctant alliance with the Wesen Resistance and a new mysterious Grimm, Nick must not only get his mother back, but also destroy the coins before they fall into the wrong hands. But in a world where even blood doesn't guarantee loyalty, who can he really trust?"--Page 4 of cover.