- Series: Nick Lupo Series Record # 27536
- Series Tags: werewolf (7), horror (6), urban fantasy (1)
- Nick Lupo
- 1 Wolf's Trap (2003) by William D. Gagliani [also as by W. D. Gagliani]
- 2 Wolf's Gambit (2009) by William D. Gagliani [only as by W. D. Gagliani]
- 3 Wolf's Bluff (2010) by William D. Gagliani [only as by W. D. Gagliani]
- 4 Wolf's Edge (2011) by William D. Gagliani [only as by W. D. Gagliani]
- 5 Wolf's Cut (2014) by William D. Gagliani [only as by W. D. Gagliani]
- 6 Wolf's Blind (2015) by William D. Gagliani [only as by W. D. Gagliani]
- Wolf's Deal (2015) [SF] by William D. Gagliani [only as by W. D. Gagliani]
- Wolf's Call (2023) [SF] by William D. Gagliani [only as by W. D. Gagliani]