An obstructing bush blocks (I-8) nearly all the time. It despawns briefly from 21:00 to 3:00 game time. Quickly examine the ??? to obtain the key item, then leave the area blocked by the bush or warp out. It is impossible to death-warp out because Numbing Blossoms cannot kill you and there are no other enemies in this small area. If you don't leave before 3:00 and you have no method of warping, you are stuck here until 21:00.