>>88010848I want to say Space, but considering the two Thor movies made a point of showing (repeatedly) how easily Asgard's defenses can be bypassed and the fact that Loki's in charge....
I'm gonna say Mind, because it's on an Avengers team and in the head of arguably their most powerful member. The Collector's museum is hardly secure, the Nova Corps was a joke, and Strange is still a newbie. A talented newbie, sure, but the Eye is sitting on a display stand and not in his personal possession.
BTW I *really* hope they have the Eye Of Agomotto be a pre-existing relic that Agomotto used to contain the Time Stone instead of it just being like Loki's scepter. That undercuts Strange's mythos so badly it's hard to put into words.