Vega Jane and her enemy, the sorcerer Necro, are on a collision course that will determine the future of their world --

"Thor's hammer is missing again. The thunder god has a disturbing habit of misplacing his weapon--the mightiest force in the Nine Worlds. But this time the hammer isn't just lost, it has fallen into enemy hands. If Magnus Chase and his friends can't retrieve the hammer quickly, the mortal worlds will be defenseless against an onslaught of giants"--Amazon.

When one of Serilda's outlandish tales draws the attention of the sinister Erlking and his undead hunters, she finds herself swept away into a grim world where ghouls and phantoms prowl the earth and hollow-eyed ravens track her every move. The king orders Serilda to complete the impossible task of spinning straw into gold, or be killed for telling falsehoods. In her desperation, Serilda unwittingly summons a mysterious boy to her aid. He agrees to...

Polly's visit to her grandparents in Connecticut becomes an extraordinary experience as she encounters old friends and mysterious strangers and finds herself traveling back in time to play a crucial role in a prehistoric confrontation.