Fall of the Wishing Faeries

There's a story about a town in the middle of nowhere.
People there believe the strangest things, like don't walk under ladders and most people carry around rabbit's feet.
The town is said to be home to the largest population of the Wishing Faeries, with a large amount of the Wishing flowers.
Twins, Liam and Jaz Meyers have to move to Vitamonte after their father's death. A day after the twins arrive, two people are found dead at the edge of town.
Suddenly, Liam and Jaz are trying to prove that the murders that are happening, and the weird loss of the dandelions all over town, aren't being caused by them.