When the lethal plague known as the Scourge returns to Keldan the victims are sent to Attic Island, and Ani Mells of the River People is among them--but Ani does not feel sick, and with the help of her best friend, Weevil, she sets out to uncover the truth of what is happening, and expose the lies the people of Keldan have been told.

The fourth book in the blockbuster phenomenon MAZE RUNNER SERIES now features chapters from The Fever Code, the highly-anticipated conclusion to the series—the novel that finally reveals how the maze was built!
    Before WICKED was formed, before the Glade was built, before Thomas entered the Maze, sun flares hit the earth, killing most of the population.
    Mark and Trina were there when

...

Bella, Gwen, and the Lost Boys have escaped to Alnwick Castle, but it is not the safe haven they hoped it would be for the "cure" for the Horologia virus has mutated into something even worse--so the Duchess Alyssa and Maddox Hadder set out searching forthe virus's origin, an extinct poisonous apple, supposedly from a tree at the center of a labyrinth hidden deep within Germany and guarded by monsters.

"New Mouse City was in a panic. A strange epidemic had broken out --mice everywhere were covered in weird blue spots. Mouse Island's most famouse doctor immediately set to work with his team to try to find the cure--but someone was trying to stop him. Could I figure out who before I ended up blue myself?"--Page 4 of cover.

"After her best friend, JC, has a kidney transplant, Serena feels that they are falling out of touch, especially as JC makes a new best friend in the hospital"--

With Everland and Umberland destroyed, Gwen, Pete, and Alyssa and the other survivors have taken refuge in Evergreen Village in the forest, where they plot to assassinate the Bloodred Queen, while trying to avoid her monstrous creations, and Doc works onhis cure for the Horologia virus--but with the Queen of England dead, and the King of Germany either dead or hidden away, who can they trust to save their devastated world?

Rory Rooney likes to be prepared for anything, but when he inexplicably turns green and finds himself in an experimental hospital ward with his nemesis, school bully Tommy-Lee "Grim" Komissky, everyone is baffled but Rory believes he and Grim have become superheroes.

In a final effort to complete the blueprint for the cure, Thomas must rely on the Gladers, with full memories restored, but Thomas does not trust Wicked and he remembers much more than they realize.

Allison Sekemoto survives in the Fringe, the outermost circle of a vampire city, until she too becomes an immortal vampire. Forced to flee into the unknown, outside her city walls, she joins a ragged band of humans who are seeking a legend--a possible cure to the disease that killed off most of humankind and created the rabids, the mindless creatures who threaten humans and vampires alike.

Reveals how Thomas and WICKED built the Maze against the backdrop of an apocalyptic world.