Eustace : a ghost story

"When Alethea goes on a school excursion to Hill End, she finds herself investigating a whole bunch of ghosts. Was the ghost of Granny Evans really pacing around the museum? Was the ghost of Eustace Harrow really smashing things in Taylor's Cottage? Then two classmates disappear."
"Allie thought she was through with ghosts, but after a school excursion to Hill End she finds herself investigating a whole bunch of them."
"On a school camping trip to Hill End, Allie finds herself investigating a whole bunch of ghosts. Is the ghost of Granny Evans really pacing around the museum? Is the ghost of Eustace Harrow really smashing things in Taylor's Cottage? And what about that creepy old miner hiding out in Golden Gully? Then two of her classmates disappear. Suggested level: primary, intermediate."@en
"Allie thought she was finally finished with ghosts in her life until she went on a school trip to Hill End and found herself investigating the ghost of Granny Evans and other paranormal happenings."