The Wrong Goodbye by Chris F. Holm

The Soul Collector #2: The Wrong Goodbye

Meet Sam Thornton, Collector of Souls.

Because of his efforts to avert the Apocalypse, Sam Thornton has been given a second chance – provided he can stick to the straight-and-narrow. Which sounds all well and good, but when the soul Sam’s sent to collect goes missing, Sam finds himself off the straight-and-narrow pretty quick.