[@Heathen] Oh, my bad. I did look under the Invisibility hider(*giggles like a mature person*), but I didn't see any mention of it being a mental thing for other people. At least, that was how I read it. I just saw it not working for technology, which could be explained by the spectrum, and that strong minervas can sense her, which I took to mean that if they're using a different sense, ie, a strong sixth sense maybe, they might detect her that way. Apologies for the misunderstanding. 

But hmmm, yeah, he's been around and seen some strange things, but I don't think he's ever dealt with an invisible someone being nearby and invisible, so if it should work on him, as he's not a strong mental minerva, then I doubt he'd be able to sense her things.  That might change if she goes invisible around him a lot and he has the time/opportunity to be paying attention instead of hiding for his own safety... :P Out of curiousity, how does her invisibility work on other senses? Like, if she's being loud, or poking someone?