If you picked up and enjoyed Mr. Pettigrew (Nemesis series) by L.J. Martin last month, you'll want today's Amazon freebie: Nemesis
by L.J. Martin. Also free in Europe, Australia, Canada, and UK
If you enjoyed The Reckoning (Jess Walters series #1) by Robert J. Thomas, free last month, you may also enjoy Brother's Keeper
(Jess Walters #2). Also available free in Europe, Canada, Australia, and UK
Both are self-published, but they seem to have solid fan bases.