The Abandoned Mansion By Charlie week 17

My friends and I scrambled in through the window and into the wretched scene. Broken chairs, cracked walls, and shattered windows. It was easily recognisable as the abandoned mansion. I had been wanting to explore this mansion with my friends for a long time but unfortunately  they are too scared. Luckily for me I convinced them just enough for them and I to end up here. An old rumour has it that a ghost girl roams the dilapidated mansion. We went up the rugged stairs and up onto a landing. But suddenly my heart skipped a beat and I saw the ghost girl. Then she disappeared. But how could she disappear? Was this magic?