The Adamantine [Completed]

What does it mean to be unbreakable? Unstoppable? Tyla has wondered that her whole life. But she doesn't get an answer until a strange girl named Tiffany arrives at her farmhouse. There is something off about Tiffany. She is hiding many secrets and a dark past. That past has now come back to haunt the girls. Their peaceful life is shattered into a million pieces as they unwillingly embark on a dangerous journey. What to expect, Slow character development. A focus on family and friendship. Fast pacing. Dual protagonists.