Glass

There are nine pages related to the name Glass on the Once Upon a Time Wiki:
 * The Magic Mirror, currently known as Sidney Glass. the Storybrooke character.
 * The Glass Coffin, an item featured on Once Upon a Time.
 * The Glass Slippers, the items owned by the first iteration of Cinderella.
 * Looking Glasses, the portals featured on Once Upon a Time and Once Upon a Time in Wonderland.
 * The Trolden Glass, an item featured on Once Upon a Time.
 * The Glass Slippers, the items owned by the second iteration of Cinderella.
 * Operation Glass Slipper, the operation dedicated to finding and helping Cinderella.
 * "Breaking Glass", the fifth episode of the forth season.
 * Through the Looking-Glass. the novel.