A Curious Door

Aelwyn had just finished her patrol. Gone were the majestic blues and purples of the guard armor, and the masked hood she hid behind had been retired for the evening. The tavern was crowded, and so the only solace she had was the park. One, two, three, four, she counted silently as she stepped. The elf had taken to the habit of counting her steps to pass the time. After one hundred or so sets of four, she'd turn around, and rest for the night. Her days were exciting enough, so she felt that peaceful evenings were the best way to spend her time off-duty. She nodded her greetings to passing strangers, and murmured quick well-wishes to those who did likewise.
As she continued down the well-worn path, the faintest bit of light caught her eye. From the bushes? She dismissed the thought quickly. Aelwyn paused, considering. No harm, either way. The nelfin hiked her dress up and waded into the bed of flowers. As she drew closer, she could tell that there was actually faint light emanating from the flowers. The branches scraped at her skin, causing her to wince, and perspiration dotted her forehead. Regardless, she pressed on. As she squinted, she was able to see the faintest traces of brick. The brick widened, opening to a small, dimly lit tunnel. The woman peered into its depths, before pressing onwards. One, two, three, four, she counted nervously. Soon enough, she was at the bottom. Aelwyn glanced up. Before her was a door, larger than any she'd seen. It was set in the center of a spacious cavern, which was well lit. Just what was this? The woman decided she'd pressed her luck far enough. She scurried back up the stairs, making sure to remember where the tunnel was.