House Seal

Description
The seal consumes 1 Magic Essence an hour and can be toggled on and off. The inventory can be accessed by anyone so it is advised to keep the seal locked in a separate room. When aligned correctly, it can cover a 15x15 foundations sized box.

All structures except (at least) goblin ballistas are completely invulnerable within a House Seal but can be accessed if not pin-coded. All tames and players take full damage within the seal.

Magicka Base is an alternative to the House Seal that also defends mounts, but has a smaller radius. You can have 3 Magicka bases active in a single house.

A House can only have 1 active seal at a time (as of patch 9/8/2017)

Quote
"A seal that protects your houses' dwellings within an area of effect. Enemy houses must declare war to attack."

- In-game description