so......what was the deal with the box of food in the forest at the end? Is that suggesting that 11 went into the upside down with the monster? How does the sheriff know?
The Eggos are "bait" for Elle, like blood was the bait for the upside down monster. Only I don't think the Sheriff is trying to catch her, just wanting to know she is still alive. I'm pretty sure the kids, told the Sheriff what happened in the school (and Nancy and Jonathan about what happened in the woods) their logical deduction was that Elle is now in the upside down. Seeing as how the Monster can rip a tear between dimensions, maybe Elle could too, she did say that she created the tear that's in the lab.