"Lords of Deliverance" is a spinoff from "Demonica", but I will always consider them same series. The world is the same. 
 Demons are still around. Angels, kind of angels, wolves, kind of wolves, vampires and other magnificent beloved monsters are still around. And UGH and Aegis are still around. 
 It is just now there are also some extra players in the scene. And what outstanding players! 
 The Four Horsemen of the Apocalypse! 
 I mean, think about it. 
 There is nothing else worse than this complication. We have 
 -Ares (War), 
 -Reseph (Pestilence), 
 -Thanatos (Death), 
 -and the only female of the four, Limos (Famine) 
 The four horsemen are doing exactly what each of their names is saying. But they are really nice guys deep down and they try to avoid bringing disasters. 
 The nicest of them is Reseph. He loves to party, he loves to love. Unfortunately he is also the unluckiest one. 
 If you have read Sin Undone, you will probably know that humankind is in deep sh!t, because Reseph's seal has been broken. Reseph will not be nice anymore. Pestilence is about to conquer Earth. 
 Yes, the four horsemen come with four seals that they must not be broken. The prophecy of the Apocalypsis is waiting to be fulfilled when all four of the seals are broken. 
 And the beginning of the end is here. Reseph half mad, half determined will try to break the rest of the three seals and bring plagues everywhere in Earth. No more Mr Nice Guy anymore. 
 His brothers and sister will try to stop him. 
 The first book is about immortal horseman Ares (War) and mortal Cara. Ares seal will break if an angel dies. Cara, without realizing it, will receive the seal before this happens and now Ares has to protect her in order to protect the seal. 
 There will be some complications of course. Cara will also be the proud owner of a strange dog, named Hal, after she saves him. Okay, he is not really a dog. 
 What? Did you expect to find a normal dog in the Demonica world? Cara will receive a Hell's Kiss from Hal who is definitely not a dog and who has a very important grandfather old dog. 
 Great world building, awesome new characters, fast pace, nice love story and grand ending!