She can't promise that. Eddie wants to believe her, but he knows she can't really promise that they'll be okay. No one knows that better than Eddie, who tried. He really did, he tried to protect others and be okay, but in the end, he'd been a coward.

Saving Dustin was probably the bravest thing he's ever done, and he knows how that ended.

Eddie nods and tries a smile, except then something shrieks in the deepening shadows and his eyes widen.