"We rejoin our heroine for her latest adventure just as she awakes to find herself ... in the body of a troll! Her mother is worried sick, and is perplexed by the strange creature that seems to have taken Hilda's place. Now, both of them are in a race to be reunited before Ahlberg and his safety patrol get the chance to use their new secret weapon to lay waste to the trolls, and Hilda along with them!"--Provided by publisher.

"Meet Hilda -- explorer, adventurer, avid sketchbook-keeper, and friend to every creature in the valley! Well ... almost every creature ... Newly initiated into the Sparrow Scouts, Hilda and her friends are ready to explore and document the wilderness. Yet as luck would have it, there is a dark, menacing creature afoot near Trolberg, and Hilda is whisked back home to safety. Even so, intrigue seems to follow our blue-haired heroine wherever she goes,...

"Join our beloved heroine as she visits her Great Aunt Astrid in Tofoten. Hilda is surprised to discover that it's a fairy village...her mother had never mentioned that. Hilda becomes troubled by a crackly radio presenter, ominous dreams and soon finds herself in peril. Fantastic creatures and daring adventures are all just part of another average day for Hilda...but will her questions be answered?"--

"A trip to the castle ruins leads to brand-new, daring adventure for our beloved blue-haired heroine. When she stumbles across the faratok tree and finds herself in the Time of Giants, Hilda learns all about the Giant Slayer. Desperate to help the Giants and negotiate peace, can Hilda change the past, whilst struggling with her own?--