The Fate of the Chosen

'The Fate of the Chosen' is about a young girl named Candra.  Candra's family has always lived in Virginia with a normal life-- until Jet (Candra's older brother) meets some bad friends and is sent to a new school.   Mom and Dad are very upset with Jet, and Mini and Wendy (Candra's younger twin sisters) are scared to death.  While Mom and Dad take Jet to a special detention center, Candra must watch her five younger siblings, Mini, Wendy, Corden, Benson, and Reeda.  

Candra is allowed to do anything as long as it's appropriate, so she rents a movie she's never seen.  It's supposedly brand new (according to the store owner), but the cover looks super old.  It is called, 'The Spider on Twelve'.  Candra brings it home, and while her siblings are watching it, she does her homework upstairs.  Finally, she comes down at the last minute, and only sees the very end.  Mini tells her she can see the rest of it tomorrow, and Candra nods.  The only thing is, she already knows what happens.  She doesn't know why, but she just knows.  EVERYTHING that happens keeps playing vividly in her mind.  She thinks it is strange, but shrugs it off her shoulders and goes on living life.

Later, though, at school, Candra runs into a girl, and she demands her to read this one book.  The girl explains it, and all of the sudden, Candra knows the whole story.  She knows what happens to the main character, she knows how the story ends, and all the details in the middle.  Why is this happening to her?