"In that case..." He stopped, looking up. The closest grate that opened into the ducts didn't show up very well in the dark, but Donnie and the dark were well-acquainted. It'd take more than that to throw him off.

He floated up a few feet, reaching for the grate and giving it a hard pull.

"The good news is, it's not that slow going if we don't have to worry about doing it quietly."