Awww well see until now the Zuma couldn't see those. Who can tell what the response will be if they find out IG.
And again, if they declare war because of that, fine. That's perfectly fine GMing, IMHO. We clandestinely constructed shrines to a foreign religion, and have evinced a desire to subvert the hearts of the Zuma. Attack us. That's quite reasonable justification for violence.