DEMON NIGHT is the fifth story in the Guardian series, and the third full-length book. It takes place in modern-day Seattle and San Francisco, four months after the events of DEMON MOON.
All of the following information about the history of the Guardians is given in DEMON NIGHT, but this is a more straightforward way of presenting it.
In the First Battle, Lucifer led his rebels against Heaven. In punishment, they were transformed into demons and tossed into Hell. There were also angels who refused to take sides during the First Battle; these angels were transformed into nosferatu, cursed with bloodlust and vulnerability to daylight, and sent to Earth.
The seraphim who lived in Caelum watched over humans, and protected them from demons and nosferatu. The seraphim could never completely pass for human, however, and so the people on Earth began worshipping them as gods. When Lucifer realized this, his jealousy led him to wage another war against the angels, the Second Battle.
This battle took place on Earth, and Lucifer had with him a dragon from Chaos, and hellhounds. The angels began to falter before the dragon — but mankind, witnessing the battle taking place, joined the angels. One man, Michael, managed to destroy the dragon by cutting through its heart with his sword.
After the Second Battle, the seraphim retreated from Caelum, and gave Michael the power to guard humans on Earth, and to transform other men into Guardians. Because they were once men, Guardians can pass as human, and walk among those they protect.
As you begin DEMON NIGHT, it helps to know that: In DEMON ANGEL, Lucifer lost a wager with Michael, and the Gates to Hell have been closed. A few demons remain on Earth, but the rest are trapped inside Hell, where a war for the throne is being waged between Lucifer and Belial.
Before DEMON ANGEL, most vampires weren’t aware of the existence of Guardians and demons, although they are vaguely aware of nosferatu. But since the events of DEMON MOON, vampires are becoming aware of Guardians and demons, and communities are wary of both.
Many Guardians and novices are now receiving their assignments through and training at Special Investigations. Special Investigations was created after Michael and Rael revealed themselves before a senatorial committee, receiving approval and funding for the division.