Can I read this one without reading Revelation and Dust?
I think skipping it wouldn't influence much the experience of The Fall series, but it could be especially worth reading before/if new DS9 novels appear, because it brings us up to date with the station and its staff.
That said, I'd read it anyway. It wasn't a bad book
In a Cardassian library
or in a Cardassian gallery
"Reagan, it appears, is really only an ardent unionist if the unions in question are in Poland" - Stephen King, Skeleton Crew