Paradise Lost Part 2
So the artifacts Diana and the League are uncovering to save Diana’s family from Felix Faust? The pieces of the Key to Tartarus, the underworld. (The history between Diana’s mother and Hades does explain why no men are allowed in Themyscera.) When Faust releases Hades the League and the Amazons gets to face down the legions of the dead and the God of Hell himself.
Plus there’s the small matter of Diana breaking Themyscera law by bringing a bunch of men to the island…