Good luck, and may the night bring you clarity, not confusion.
The envelope clicked open, revealing a single sheet of vellum:
She tucked the tokens into her coat pocket, knowing they were more than mere curiosities. Back at her desk, Mara examined the final letter. Adjusting the contrast on her scanner revealed a watermark: POST‑CODE‑200. The watermark’s faint letters spelled **ECHO**.
As the clock struck twelve, the box began to hum. Mara opened the box to find a stack of letters, each written in a different language, yet all ending with the same cryptic line: