Othyr A planet near the center of the solar system, known for its wealth and its contribution to technology, particularly in the realm of medicine.

Pitha Also known as "the water planet," a nation-planet of highly practical people who are prized for their engineering of synthetic materials.

season A unit of time that has its origins in Pitha, where one revolution around the sun is jokingly referred to as "the rainy season" (since it rains constantly there).

Shissa The wealthiest of the three cities of Thuvhe. The buildings in Shissa hang high above the ground "like suspended raindrops."

sojourn A seasonal journey undertaken by the Shotet people in a massive spaceship, involving one revolution around the solar system, and the scavenging of a "current favored" planet's valuable materials.

Tepes Known also as "the desert planet," it is the closest nation-planet to the sun, known for being highly religious.

Thuvhe The Assembly-recognized name for both the nation and the planet itself, also known as the "ice planet." It contains both the Thuvhesit and Shotet people.

Urek The Shotet name for the planet of Thuvhe (though they refer to the nation of Thuvhe by its proper name), meaning "empty."

Voa The capital city of Shotet, where most of the population is located.

zivatahak A style of Shotet combat best suited for students who are quick in mind and body. Translates to "school of the heart."

ABOUT THE AUTHOR.

Photo Reinaldo Coddou.

VERONICA ROTH is the #1 New York Times bestselling author of Divergent, Insurgent, Allegiant, and Four: A Divergent Collection. Ms. Roth and her husband live in Chicago.

You can visit her online at www.veronicarothbooks.com.

BOOKS BY VERONICA ROTH.

Divergent * Divergent Collector's Edition.

Insurgent * Insurgent Collector's Edition.

Allegiant * Allegiant Collector's Edition.

The Divergent Series Complete Collection.

Free Four.

Four: The Transfer: A Divergent Story.

Four: The Initiate: A Divergent Story.

Four: The Son: A Divergent Story.

Four: The Traitor: A Divergent Story.

Four: A Divergent Collection.

The Divergent Series Ultimate Four-Book Collection.

Carve the Mark.

end.