"Laurel, Tamani, David, and Chelsea race to defend Avalon from Yuki and Klea--but they realize that there may be nothing they can do to save it"--

A new America called Valhalla grows restless under the controlling long arm of the Datum government, while all of the Long Earth is infused by the song of the trolls who are starting to react to humanity's thoughtless exploitation, bringing humankind to the brink of war.

As her senior year of high school starts, Laurel is just beginning to adjust to Tamani's absence when he suddenly reappears, telling her he must guard her against the returning threat of the trolls that pose a danger both to her and to Avalon.

Along a magic-saturated stretch of the Mississippi River near Blue Wing, Minnesota, twelve-year-old Claire and her bullying cousin Duke are drawn into an adventure involving Bodacious Deepthink the Great Rock Troll, a helpful fairy, and a group of trolls searching for their fathers.

When Wendy Everly was six years old, her mother was convinced she was a monster and tried to kill her. It isn't until eleven years later that Wendy discovers her mother might have been right. With the help of Finn Holmes, Wendy finds herself in a world she never knew existed--a world that's both beautiful and frightening, and Wendy's not sure she wants to be a part of it.

A young man with a mysterious past and a penchant for inventing things leaves the troll who raised him, meets an unhappy princess he has loved from afar, and discovers a plot against her and her father.

After a summer at Camp Dragononka, Wiglaf returns to school to find himself tormented by his energetic younger brother Dudwin and a troublesome troll with a sense of humor.

Years after her sisters venture Outside and vanish in a snow squall, thirteen-year-old Tag sets out to rescue the lost Youngers, accompanied by an unlikely crew--Boots, who can climb anything; Ant, who will eat anything; and Ren, who will say anything. Includes author's note.

Cardan Greenbriar, High King of Elfhame, visits the mortal world to face the troll woman, Aslog of the West.

Ned Thump is a seven-foot troll who is made fun of for his love of words so he escapes from the Enchanted Realm to the human world and secretly becomes a night watchman at Grand Central Terminal.