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Omega City
Series · 3 books · 2015-2018

Books in series

Omega City book cover
#1

Omega City

2015

Gillian Seagret doesn't listen to people who say her father's a crackpot. His conspiracy theories about the lost technology of Cold War–era rocket scientist Dr. Aloysius Underberg may have cost him his job and forced them to move to the middle of nowhere, but Gillian knows he's right and plans to prove it. When she discovers a missing page from Dr. Underberg's diary in her father's mess of an office, she thinks she's found a big piece of the puzzle—a space-themed riddle promising to lead to Dr. Underberg's greatest invention. Enlisting the help of her skeptical younger brother, Eric, her best friend, Savannah, and Howard, their NASA-obsessed schoolmate, Gillian sets off on a journey into the ruins of Omega City, a vast doomsday bunker deep inside the earth,. But they aren't alone inside its dark and flooded halls. For while Gillian wants to save her dad's reputation by bringing Dr. Underberg's secrets to light, there are others who will stop at nothing to make sure they stay buried . . . forever.
The Forbidden Fortress book cover
#2

The Forbidden Fortress

2017

Perfect for fans of The Goonies and Rick Riordan, The Forbidden Fortress is the thrilling sequel to Omega City, from acclaimed author Diana Peterfreund. Gillian Seagret is not having a great summer. Her mother’s come back with plans to move Gillian and her brother across the country, and her father is away promoting his new book on Omega City—without her! Though Gillian and her friends were the ones to find the lost doomsday bunker, no one seems to care about their thoughts on the whereabouts of its creator, Dr. Underberg, or learning the truth about the Shepherds, a mysterious group that will stop at nothing to keep Underberg—and Omega City—a secret. All that changes when Gillian and her friends are invited to speak at a lecture series at Guidant Technology. Finally they’re being recognized for their adventures! The Guidant campus is full of wonders, from self-driving cars to robot waiters, and the future-focused employees seem like worth heirs to Dr. Underberg. But there are secrets here, too—a radio station that plays nothing but coded numbers, and an island that doesn’t appear on any map. And when Gillian and her friends uncover evidence that the Shepherd conspiracy goes deeper than anyone suspected, it’s up to them to infiltrate the Shepherds’ secret base and expose them . . . before it’s too late.
Omega City book cover
#3

Omega City

Infinity Base

2018

Gillian Seagret thought she knew everything about the secrets of Omega City, the mysteries of the rocket scientist Dr. Underberg, and the evil conspiracies of the organization called the Shepherds. But she’s about to learn that uncovering the truth is the easy part. You also have to fight for it. Now Gillian’s father has been taken captive, and she and her friends are trapped in the Shepherds’ hidden base. The only person who can help them is a rogue Shepherd, but she has plans of her own, and no one—least of all Gillian’s mother—is sure they can trust her. New clues to Underberg’s past lead them back into an utterly transformed Omega City and farther than they even imagined, into outer space. There, Gillian, Eric, Savannah, and Howard discover the Shepherds’ most precious secret, and they realize there’s more at stake than simply their family and Underberg’s legacy—they also have to save the world. Full of thrilling adventure, cliffhangers, and conspiracies, this epic conclusion to the Omega City series is not to be missed.

Author

Diana Peterfreund
Diana Peterfreund
Author · 28 books

Diana Peterfreund has been a costume designer, a cover model, and a food critic. Her travels have taken her from the cloud forests of Costa Rica to the underground caverns of New Zealand (and as far as she’s concerned, she’s just getting started). Diana graduated from Yale University in 2001 with dual degrees in Literature and Geology, which her family claimed would only come in handy if she wrote books about rocks. Now, this Florida girl lives with her husband and their puppy in Washington D.C., and writes books that rock Her first novel, Secret Society Girl (2006), was described as “witty and endearing” by The New York Observer and was placed on the New York Public LIbrary’s 2007 Books for the Teen Age list. The follow-up, Under the Rose (2007) was deemed “impossible to put down” by Publisher’s Weekly, and Booklist called the third book, Rites of Spring (Break) (2008), “an ideal summer read.” The final book in the series, Tap & Gown, will be released in 2009. All titles are available from Bantam Dell. She also contributed to the non-fiction anthologies, Everything I Needed to Know About Being a Girl I Learned from Judy Blume, edited by Jennifer O’Connell (Pocket Books, 2007), The World of the Golden Compass, edited by Scott Westerfeld (BenBella Books, 2007), and Through the Wardrobe, edited by Herbie Brennan (BenBella Books, 2008). Her first young adult novel, Rampant, an adventure fantasy about killer unicorns and the virgin descendents of Alexander the Great who hunt them, will be released by Harper Collins in 2009. When she’s not writing, Diana volunteers at the National Zoo, adds movies she has no intention of watching to her Netflix queue, and plays with her puppy, a Nova Scotia Duck Tolling Retriever named Rio.

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