Optimal

Alexis, Kai, Elina, and Quintin managed to escape The Academy at the expense of Elina's little brother, Wyatt.
Outside, the gang gets saved by the group called The Resistance, and they meet Elizabeth Crawford, Talia's younger sister.
They must learn to adapt to their new surroundings in order to beat the government.
Talia continues to stay behind the scenes, helping The Resistance whenever she can, but the prime minister is getting suspicious.
The Resistance is growing and getting stronger. They need to find Wyatt before they lose him forever.
Optimal is the second book in the Faultless trilogy. Friendships are made, secrets are shed, ties are broken, and time is running out.