The bell tower / R.J. Ellory.

After a drugs bust goes wrong, Deputy Sheriff Garrett Nelson is left wounded, with a permanent limp and a career in tatters. On his long road to recovery he finds one consolation - Hannah, his tough-as-nails physiotherapist, and soon they're planning a future together. Unfit for active police service, Nelson is left with few options, so he gratefully accepts his father-in-law's offer of a job at a Florida penitentiary on the grounds of an old Spanish mission in the Everglades. The prison's chapel, a working bell tower, is now an execution chamber. And Nelson must attend the executions. Working on Death Row comes with a few simple rules: do not let the inmates get under your skin; do not allow any prisoners to escape; do not take justice into your own hands. Garrett Nelson will break every one of them.