Order of Devlin Books
Devlin is a fictional character featured in a series of novels by American author Michael Walsh. Devlin is a secret operative for the Central Security Service.
The Devlin series began with Hostile Intent in September 2009. The series is scheduled to have a total of five installments. Below is a list of Michael Walsh’s Devlin books in order of when they were originally published:
Publication Order of Devlin Books
| Hostile Intent | (2009) |    |
| Early Warning | (2010) | |
| Shock Warning / Shock Wave | (2011) | |
Note: Shock Wave is also known as Shock Warning.