Blood For Coins by Cam Wolfe

There is a popular expression among the sellswords of Koragrave. "Follow the coin." For the right price, Enzo & Rascal will handle any problem you have. Putting down monsters, transporting dangerous cargo, acquiring valuables, they do it all. The only problem...? One of them is locked away in the world's most notorious prison. It's time for a jailbreak.