This is book number 4 in the Evan Smoak series.
"A swift-paced plot involving numerous twists plus a surprise ending...Plan to stay up all night reading this one." ―Library Journal (starred review)
Orphan X―the man, the legend, and the only one to right the world's wrongs when no one else can. . .
Evan Smoak was taken from a group home at age twelve and raised and trained as part of the Orphan Program, an off-the-books operation designed to create deniable intelligence assets: assassins. Evan was Orphan X. But he broke with the Program, using everything he learned to disappear and reinvent himself as the Nowhere Man, someone who could help the truly desperate when all hope was lost. But now Evan's past is catching up to him―and there's no one left to rescue but himself.
Someone at the highest level of government has been trying to eliminate every trace of the Program by killing all the remaining Orphans and their trainers. After his mentor was killed, Evan vowed revenge. Now, is target is the man who started the Program and who is the most heavily guarded person in the world: the President of the United States. But the President knows that Evan is after him and he has issued a counter-attack using the most powerful weapon he has: the first recruit of the Program, Orphan A. Now, with Evan devoting all his resources to outsmart his enemy, it's Orphan vs. Orphan―before the President harms more innocent people and the future of the country hangs in the balance