What happens if I my opponent has Chamber of Angels out and I block a rescue attempt with Seven Wicked Spirits and switch for my Assyrian Archer? Since I am interrupting Chamber's ability to be set aside, are the angels technically in my territory throughout the duration of the 7WS's interrupt ability? Thus, would Archer be able to snipe one before it before it returns to set aside, thus killing the Angel for good?
Chamber of Angels - "Set this fortress aside. If holder's angel is being discarded, place it here instead. After two turns, return Hero to the top of your draw pile."
Seven Wicked Spirits - "You may interrupt all Fortresses and exchange this Evil Character with any other Evil Character in play or set-aside area."
Assyrian Archer - "You may discard a Hero in a territory. If you do, discard this Evil Character after battle. May band to an Assyrian."