She paused before the ancient doorway. This building must have been here since before the Great Fire, she thought. Taking a deep breath, she pushed on the door, gently at first, but harder when it resisted. With some creaking, and the tinkling of a small iron bell dangling from the top corner, the door finally relented and admitted her into the shop. She stepped inside.

The light from the street slanted in through dirty glass squares and illuminated the dusty air in straight beams that shone, like a spotlight, on the shelf against the far wall. She stepped over to the shelf and looked at t…