In the aftermath of an aristocrat's murder on September 10, 2001, for her priceless Van Gogh painting, Anna, a World Trade Center survivor, takes advantage of her "presumed dead" status and travels throughout the world to avenge the woman's death.

The Wormling, Owen Reeder, in his continued search for the Son, seeks advice from the Scribe, but along the way is constantly plagued by the Changeling, who can change shapes instantaneously, and is sent by the evil Dragon .

Having accepted his role as Wormling, Owen Reeder and his new friends from the Lowlands continue their search for the King's son while keeping safe from the evil Dragon, in a dangerous attempt to fulfill the prophesy of uniting Owen's world with the Lowlands.

Twins Ashley and Bryce face their toughest challenge yet when the terrorist responsible for their father's death seeks revenge against their stepfather, a government agent, and targets schools, beginning with theirs.

Twins Ashley and Bryce get involved in another mystery when they observe strange goings-on near the alpaca farm, and, meantime, their school is imbroiled in a controversy over an annual day of public prayer.

While visiting Chicago, twins Ashley and Bryce catch up with old friends, visit the house where they grew up, see many reminders of their deceased father, and help search for their best friends' uncle, who disappeared days before his wedding.

Bigfoot returns to his hometown with his wife to raise their kids after being on the monster truck circuit for years. Meteor, a moon buggy monster truck, along with his friends, hit the road for adventure. There's a lot of racing going on when Meteor and Little Tow try to keep up with their new ATV friends.