Amalia Bermejo Volgorde van de boeken

Can Hiccup find Grimbeard the Ghastly's treasure before Alvin the Treacherous gets his sneaky hands on it? And if Hiccup opens a box that says DO NOT OPEN, .will he live to tell the tale?

Forced to live with his evil identical-twin uncles after his father's death, twelve-year-old Peer tries to find a way to stop their plan to sell the neighbor's children to the trolls.