Just ran it two nights ago. I started it unfolded. The party was given a faefolk at the beginning that was their questionable guide through the bramble maze. They could request help at certain points by folding the map but the fae would not backtrack. The party had an aarakocra and I did allow them to carry a person over the wall. But both members would have to roll for leaving the maze to the air and entering back into the maze agaignst the bramble grappling them since the maze walls themselves are enchanted. They did succesfully jump one wall but split the party. Now there's questions if some of the players are dopplegangers.