Books by Jeff Chen

Spy School Entrance Exam

by Stuart Gibbs, Jeff Chen

Solve word searches, crack codes, and complete cryptic crosswords to show the CIA that you have what it takes to join Ben and the rest of the crew on their next covert mission with this Spy School companion puzzle book.

If you are reading this letter, it means that you are an extremely special person. You have been carefully vetted by a top team of psychologists, intelligence agents, and CIA recruiters who have covertly analyzed every aspect of your personality and determined that you are one of the few students on the planet who has the potential skills, brains, and gumption to become a student at the Academy of Espionage.

The following pages contain some of the most devious, challenging, complex puzzles ever created, devised to help us determine who are the cream of the crop and then recruit them to the academy. Good luck! You’ll need it.

Ultraball #2: Deathstrike

by Jeff Chen

The stakes are extreme in the second book of Jeff Chen’s futuristic, action-packed Ultraball series. Win-or-lose turns into life-or-death in this thrilling middle grade adventure tailor-made for sports and sci-fi fans.
Strike and the Miners are hungrier than ever for a championship after losing yet another Ultrabowl. When they suffer a shocking defeat in their season opener, Strike knows that something is off with his game, but the secret hampering his play is too large to reveal.
If he can’t perform at the highest level, what chances do the Miners have against the unstoppable Neutrons?
Worse yet, his powerful enemy, Raiden Zuna, knows Strike is hiding something. Zuna offers to help, and Strike is tempted—but the information Zuna wants in return threatens Strike’s friend Boom, as well as the growing Dark Side resistance. When rumors surface about Zuna’s mysterious grand plan, code-named Operation Deathstrike, Strike’s choice could have consequences he never anticipated. Even as the Ultraball games ratchet up in intensity, with teams using explosive new tactics to reach the Ultrabowl, Strike has bigger decisions to make if he wants to keep his teammates—and the moon—safe.

Ultraball #1: Lunar Blitz

by Jeff Chen

Enter the exhilarating game of Ultraball—fly over pass rushers and explode into slingshot zones—through Jeff Chen’s dazzling future world on the moon. Here Ultraball is life, and survival is all that matters. Perfect for sci-fi and sports fans alike.

Strike Sazaki loves defying gravity on the moon in his Ultrabot suit. He’s the best quarterback in the league, but while Strike’s led the Taiko Miners to the Ultrabowl three years in a row, each one has ended in defeat.

This year, Strike thinks he’s finally found the missing piece to his championship quest: a mysterious girl who could be his new star rocketback. But Boom comes from the Dark Siders, a mass of people who left the United Moon Colonies to live in exile. And not all his teammates are happy sharing a field with her.

When rumors surface of a traitor on the Miners, Strike isn’t sure who he can trust. If Strike can’t get his teammates to cooperate and play together, they’ll lose more than just the Ultrabowl. The stake of the colony’s future is on his shoulders.

Ultraball #1: Lunar Blitz

by Jeff Chen

Enter the exhilarating game of Ultraball—fly over pass rushers and explode into slingshot zones—through Jeff Chen’s dazzling future world on the moon. Here Ultraball is life, and survival is all that matters. Perfect for sci-fi and sports fans alike.
Strike Sazaki loves defying gravity on the moon in his Ultrabot suit. He’s the best quarterback in the league, but while Strike’s led the Taiko Miners to the Ultrabowl three years in a row, each one has ended in defeat.
This year, Strike thinks he’s finally found the missing piece to his championship quest: a mysterious girl who could be his new star rocketback. But Boom comes from the Dark Siders, a mass of people who left the United Moon Colonies to live in exile. And not all his teammates are happy sharing a field with her.
When rumors surface of a traitor on the Miners, Strike isn’t sure who he can trust. If Strike can’t get his teammates to cooperate and play together, they’ll lose more than just the Ultrabowl. The stake of the colony’s future is on his shoulders.