After Darkness Light (Dreamcatchers #1 ) A Young Adult Dark Fantasy, by Tom Sarega

Five school friends are dragged unwittingly into a world of menace as they become embroiled in an apocalyptic feud between two Mayan brothers.
The Mayan prophecies are nigh and Anunaki will fulfil them. He will unleash the dreamcatcher and shroud the world in such darkness that none will survive. And if by a miracle some do, they will pray every night that they had perished also.
The only person who can stop him is his younger brother, Iktaniki, a spirit guide – but not without the help of the five. There’s just one problem. They don’t trust him….or his motives.
DREAMCATCHERS – After Darkness Light is a young adult dark fantasy. Imagine, for a moment, Super 8 crossed with Apocalypto, and you have a hint of an idea of the story.