I've read a few stories set in Vicki Pettersson's The Sign of the Zodiac series, but not enough of them to be that invested in 'Dark Matters' until about chapter four or five of its seven chapters.

When the story starts, a five-year-old JJ, son of two agents of Light, gets to witness his parents die in a battle with the Shadows. One little Shadow girl, Solange, could have killed him but didn't. They meet again 23 years later. Their interactions are this story, coupled with the need to find the Kairos, the child of prophecy. A human psychic could have the answer. Who will get to her first?

This is an origin story. If you're a fan of the series, it should prove interesting. Otherwise, it takes a while to get into the story. ( )