Acotar and throne of glass crossover. Rhysand and Feyre are sucked into a portal and end up in Terassen, where they meet Aelin's court.

Book 2 (book 1 - Throne of Roses) Finding out that Aelin is a goddess puts a strain on the already poor relationship between her and the High Lords and Ladies. Though Terassens alliance with the Court of Dreams is getting stronger everyday, mainly due to Nyx and Nehemiah being mates.

What would have happened if Amaranth came 50 years later? If Rhysand found his human mate on the other side of the wall and still fell in love? Would Feyre still have saved Prythian from her?

ToG and ACOTAR crossover. When Aelin is on a visit in the glass castle she gets sucked into a portal that leads her to the Night court. [EDITING]