Session 1 of my campaign is going to be the group waking up in an open field with no memory of why or how they got there. Later on in the campaign I want them to recover these lost memories. These lost memories are from the Feywild. Is there any RAW way of recovering these memories?
Page 50 of the Dungeon Master's Guide includes a optional rule for the Feywild plane on memory loss. It has creatures that fail a saving throw upon leaving lose their memories of time spent on that plane. However, it end with the line:
Any spell that can end a curse can restore the creature's lost memories.
The most obvious spell which ends curses is remove curse (A 3rd level abjuration spell available to Clerics, Paladins, Warlocks, and Wizards):
At your touch, all curses affecting one creature or object end.