So let's say that an opponent plays pitch and gopher wood goes and gets Noah's Ark then makes a rescue attempt with a few flood survivors and fails the heroes get put in Noah's Ark. On my turn I draw three cards and one of them happened to be DoN I discard pitch and gopher wood and negate it, is this possible? If so what happens to the heroes that are in Noah's Ark after Noah's Ark is put back into the players deck?
I guess I'm asking how far back can I negate an artifact?