The VOIDRUNNER'S CODEX is coming! Explore new worlds, fight oppressive empires, fend off fearsome aliens, and wield deadly psionics with this comprehensive boxed set expansion for 5E and A5E!
I don't know of any around Dover, but if you ever make it up to Wilmington there's a great game store / scifi-fantasy bookstore named Beyond Books, just off I-95 at Harvey Road and Philadelphia pike.