A message from a ghost

Bella and her friends, Elise and Gracie, are going on a school trip. But then they get lost. They set out to find their school friends and the youth hostel where they should be staying but before they can find them, strange and spooky things start to happen. First Bella sees a mysterious girl in the woods, then Elise witnesses a discussion between two men which will reveal some dangerous secrets. Their friends are unaware that they are in danger and it is up to Elise, Bella and Gracie to save them. But how?