Esrin Fortuna is very mystical name. That's a mightyt big amulet on her neck. Maybe she's trying to pawn it off to Felicity since she seems to be missing some neckwear.
Oliver and Felicity look pretty dressed up for two people trying to find some magic to defeat Damien Darhk. Is evening wear part of the ritual? Or were they just planning a romantic outing that somehow got interrupted?