"Well, if they are so incredibly powerful they can see me while my invisibility spell is activated, they can surely over come the restrictions I've placed on their technology in seven days, at the absolute latest. We have at least until then to hunker down and make our plans here. . . I can even make portals for us to cross to and fro from our locations that no one but us can enter. Supposedly, the portals are even harder to cheat with than even my invisibility spell, but try not to be seen wherever the portal I open for you is located, because if they can see me while I"m intangible, who knows how powerful their scientific equipment really is?"