Calabon's Tower

South of the island of Marlcroft Holm, hidden beneath the waves is a sunken tower. Few know it is there, for it is hidden from view unless one passes over the location in a ship.
The tower is squat, with a crenelated upper floor and is surrounded by a lush and healthy garden. The entire structure and its surroundings are encased in a bubble of apparently breathable air which allows everything other than seawater to pass through it. Because of this, there are often helpless marine animals, mostly small fish, flopping around within the bubble having accidentally passed through the barrier.
Who built the tower, and for what purpose, is not known for sure, but those who know of it refer to it as Calabon's Tower.

Calabon's Tower by Unknown

Type

Tower