About “Ballistic”
Mark Greaney is an American author known for writing the Gray Man series, a collection of action thriller novels featuring the character Court Gentry, an assassin and CIA operative. He also collaborated on several works by Tom Clancy, contributing to the Ryanverse after Clancy's death in 2013. Greaney continued to write within this fictional universe until 2017. His work includes both original novels and contributions to established literary franchises. (Summary adapted from Wikipedia, CC BY-SA 4.0.)