If planted in natural ground, the acorn will slowly grow into a hollow tree and become a temporary entrance into the Valley. It must be planted in dirt, in natural ground, not in a pot or inside a building. In d20 hours, the tree will become the hollow tree that allows entrance into the valley. An acorn can only be used once.
These descriptions assume a 10 hour span from planting to becoming an entrance:
Within the first ten minutes, a green shoot spurts out of the dirt. In three hours the shoot grows to a sapling, and in another three hours to a large tree. By the ninth hour, the tree is old and gnarled, and in its last hour it crackles and dries and hollows until finally cracks form up from the ground revealing a hollow trunk and a hole into the Valley of the Blue Sun.
The entrance will last for d6 hours.
