This game was educational and had some neat tricks.
You are an investigator trying to track down a vandal at the site of a disaster years ago. The game takes you on a tour of that site, and then, interestingly, takes you back to the past, as you talk to a ghost.
The game uses a conversational style that pops up a menu at the top of the screen, similar to some Emily Short games. While it took me a second to find the menu, I ended up liking the conversation system. Interestingly, our protagonist has very terse sentences.
Fos1's style blends historical facts with present-day drama, and overall I found it educational. The game's multiple guided tours lock you out of going backwards, forcing you into a carousel, which is a technique I'd never really thought of using before.
Some of the plot changes were a bit abrupt, and I think that some characters and items would have benefited from an 'initial appearance' descriptor in Inform. But overall I'm glad I played the game.