This entry was published at least two years ago (originally posted on November 1, 2019). Since that time the information may have become outdated or my beliefs may have changed (in general, assume a more open and liberal current viewpoint). A fuller disclaimer is available.
The key didn’t look particularly important. Just one of many on the keychain. Weathered metal, obviously long-used, but nobody could remember when it was last turned. The mystery wasn’t what lock it would open, but what would be released when it was used.