River of Night's Dreaming

We were reading comics on the porch of a building, perhaps a loading dock. The wind was blowing them towards a river nearby which went down a rapids into another building where it was part of an elaborate artificial waterfall or sculpture that resembled (in part) a printing press.

There were bleachers in the building with people watching something. When I noticed the comics blowing into the river, a team of us went in undercover to shut down the sculpture so we could get access to retrieve the comics.

One particular comic was valuable; I felt a lot of anxiety that the wind had been blowing them from the porch for quite some time before we noticed.
In the building was also a room that looked like a lethal injection chamber.

There was one guy in particular was spearheading our operation. I expressed concern that a member of the cleaning staff was coming and would jeopardize our cover but he explained she was one of us.