“Still flunk the math,” Jedao said cheerfully.
That was true. While Jedao had excellent geometric and spatial intuition, he had never developed better than scrape-by competency at the algebraic underpinnings of calendrical mechanics. Kujen had considered fixing the dyscalculia, but it was more convenient not to.
The Trials of Apollo (The Hidden Oracle, The Dark Prophecy, The Burning Maze, The Tyrant's Tomb, The Tower of Nero) by Rick Riordan
How do you punish an immortal?
By making him human.
After angering his father Zeus, the god Apollo is cast down from Olympus. Weak and disorientated, he lands in New York City as a regular teenage boy. Now, without his godly powers, the four-thousand-year-old deity must learn to survive in the modern world until he can somehow find a way to regain Zeus's favour.
But Apollo has many enemies—gods, monsters and mortals who would love to see the former Olympian permanently destroyed. Apollo needs help, and he can think of only one place to go… an enclave of modern demigods known as Camp Half-Blood.
Fantasy, mythology, middle grade, adventure, urban fantasy, series
The Machineries of Empire series (Ninefox Gambit, Raven Stratagem, Revenant Gun, and other stories) by Yoon Ha Lee
To win an impossible war Captain Kel Cheris must awaken an ancient weapon and a despised traitor general.
Captain Kel Cheris of the hexarchate is disgraced for using unconventional methods in a battle against heretics. Kel Command gives her the opportunity to redeem herself by retaking the Fortress of Scattered Needles, a star fortress that has recently been captured by heretics. Cheris’s career isn’t the only thing at stake. If the fortress falls, the hexarchate itself might be next.
Cheris’s best hope is to ally with the undead tactician Shuos Jedao. The good news is that Jedao has never lost a battle, and he may be the only one who can figure out how to successfully besiege the fortress.
The bad news is that Jedao went mad in his first life and massacred two armies, one of them his own. As the siege wears on, Cheris must decide how far she can trust Jedao–because she might be his next victim.
Science fiction, fantasy, science fantasy, space opera, military science fiction, series, adult