The Entrance to The Underworld is a unqiue defense which spawns Undead Beings.
- If they are not destroyed quickly, more will spawn, and at a faster rate.
- Will only spawn Undead Beings if troops are within 5.5 tiles of the tower.
- If there are less than 5 undead beings on the screen they will spawn at the rate of 2 per second.
- If there are 5-29 undead beings on the screen they will spawn at the rate of 1.5 per second.
- If there are 30-50 undead beings on the screen they will spawn at the rate of 1.25 per second.
- If there are 51+ undead beings on the screen they will spawn at the rate of 1 per second.




