Exploring The Abandoned Dungeon
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I started deciphering the Goetia as I could. The system messages told me it was actually written by Ancient Wizards of the past. It seems that these were people that understood and studied the world better than the Gods themselves.
And of course, they were all wiped out by Odin's anger, he could simply not accept that these mortals were beginning to comprehend the world better than the Gods.
However, they left their knowledge in this book, the Goetia. It narrates their past, and also what they investigated the most.
The Calamities.
They defeated some and studied them by detail, and the reason why they were wiped out by Odin's judgement was because of this one reason.
They managed to create a Ritual to extract a Sin from a weakened Calamity.
Their goal? They wanted to harness their power for their own.
And they almost did it, it actually worked, but the one that became the vessel went insane and became a monster… Oops.