Hi, we are about to finish s. 200 and it says reveal 2 starting slumber map tiles. Where these tiles come from? Our slumber map tile space in the board is empty. Thank you!
Those are tiles II-36 A (with the "STARTING" tag on their backs).
You should have gained them in the Tutorial Dream.
On the game board, there's a space they should be kept while you're in a Dream (when you discard Slumber map tiles).