The Devil Tree House

There is an old school built near in the forest several decades ago and there is a tree house at the back of the school. It has been neglected and almost abandoned by time, so many spirits have lived here. Many wonders have also happened in the area that have frightened people who know the story about the tree house. Until the wealthy couple renovated the old school for student to use again. They have two children. Their eldest son is studying abroad with his grandfather and one of their daughter's named Samantha will be there to study. One day the student was suddenly possessed by an demonic spirit. What happened to the girl was so horrible that the teachers and some students could not bear with the strength of the girl. They called a witch doctor and a priest to expel the spirit that was in the girl's body but they failed to defeat the demonic spirit. Until they thought of seeking help from a paranormal investigator. When he arrived he began the prayer o ritual to cast out the dreaded spirit. The girl healed but she sustained many wounds on her body. After the possession the priest blessed the school and even the tree house. The priest did not try to climb the tree house because of the omnimous presence of spirits. The school has been quite since it was blessed. Just a few months later, there were students playing chase until they no longer realized they had reached the tree house. Suddenly the two children climbed up and entered inside the hut. They stayed a few minutes and panicked. One shouted out while the other one was left inside. What happened to a student who was left inside the hut? Why it called the devil tree house?