@JeremyECrawford if Sentinel is high on sky, creature falls until reaches the ground? Or it can recover in time if it is flying high enough?

— ɟןǝsɯıɥ‾oɹbo (@ogro_himself) October 19, 2016

The game has no official rate of falling. As DM, I make extremely long falls take longer than a round. #DnD https://t.co/H1Sor4DQ9y

— Jeremy Crawford (@JeremyECrawford) October 19, 2016