Aesir Vaulted Ceiling Corner

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==Description==
These golden-haired reavers of the frigid north, these Aesir, worship Ymir, the Frost Giant, Lord of Storm and War, emulating his cold strength.
It is said a ceiling makes a home, makes a civilization. To block out the storm and the predator is to have mastery over them, is to stride boldly out of the food chain.
Weapons barely chip it and even explosive powder is not enough to weaken it in a single blow. Siege weapons or divine intervention are really the only way to bring down walls this strong.
==Source==
 Created from the following Recipes 
Construction Hammer	Construction Hammer	Construction Hammer	Construction Hammer
Ingredients 	Outcome 	Craft time 	Experiencegained
15 4 3 	1 	0 s 	238
==Repair==
Repairing requires up to:
* 12 
* 3 
* 3