During the ceremony, the Black Hound comes out of Nowhere Space and Hilda and Tontu flee, ending up in Hilda's home. Hilda and mum track him down through the wilderness, flashing back to memories of Hilda and Twig's first encounter for clues. According to the troll information book seen in " Hildafolk", the petrification process is not a pleasant or comforatble experience, and on smaller and weaker trolls the effect can be permanent.

Hilda is punished by The Committee of Three to have mouse whiskers for the rest of the day because of her part in the chaos. Sparrow Scouts Uniform: Yellow shirt, brown skirt, red neckerchief, black leggings, brown hat w/ red feather, large red boots. The prize: a day out of school for a 'ride along' inspection of Trolberg's defenses with the head of the Safety Patrol, Erik Ahlberg. The troll, however, has seen how Johanna cared for Hilda, and uses a changeling spell to make her daughter and Hilda swap places. Sadly, Jorgen accidentally destroyed Hilda's house, just when she managed to arrange a truce with the king, forcing her and her mom to move to Trolberg.A few years prior to the series, she met Twig, who had been trapped under some rocks after a landslide, and freed him. When he stopped doing so since his, and Frida's favourite book went missing, Frida's room quickly became a pig pen.

They're funny and fun to have around, but Hilda realizes too late that they are servants of the Gryla; a legendary monster that eats misbehaving children.Hilda and Frida dive down into the Harbor to discover the real sea monster: an island-sized 'Kraken' with a taste for wooden ships.