Simon R. Green 
Daemons Are Forever [EPUB ebook] 

New York Times bestselling author Simon R. Green continues his Secret Histories fantasy adventure series featuring supernatural super agent Eddie Drood.The name’s Drood. Shaman Drood.For centuries, my seriously dysfunctional family have been battling the forces of evil, all the while keeping you everyday folks safe, sound, and blissfully unaware of just how truly nasty this world can be. And due to some recent internal conflicts, I’m the man in charge of the whole mess. So, of course, things are about to go sideways.It turns out that in the darkest days of World War II, my family was in a hard place, fighting a desperate battle against some infernal creatures the Nazis had brought into the fray. So, the Droods decided to fight fiend with fiend, making a very stupid deal with a bunch of demons called the Loathly Ones to take our side.The good news is they did a hell of a job.The bad news is they decided to stick around.Now, they’re calling home to let their even more nightmarish masters know that this world is ripe for conquest. And me and mine are the only ones who can stop them.