I need help ending my suspense story.?

for an eng ignment i was asked to write a short story with suspense/horror in it. Mines about these friends who went on camp and 2 of them are killed mysteriously by this ghost like thing, and the only one left is this girl. Now im up to the bit shes confronting the ghost. HOW SHOULD I END IT! i want to kill her too, cus im fond of unhappy ednigns haha, but i want it to end in a good way. not cliche or retarded. PLEASE HELP :)