Disclaimer: All characters are owned by J. K. Rowling, a wonderful author whose characters I have borrowed for a completely profit-free flight of fancy. Kindly do not sue me, please, as I am terrified of you. Thank you. This disclaimer applies to all following chapters.
Illusion
I peered more closely at the place vibrating with power, and I stretched out my hand to touch the wall. My fingers passed through as though the stone were smoke. My urge to explore the chamber within was great, but I pulled back, thinking it could be a trap and I might be walled up inside it forever if I went through.
How very fortunate I was to have two companions with me! I compared the two children and chose the sobbing girl because she seemed less damaged. Dragging her to her feet, I heaved her through the invisible door.