Question [RRL] Everyone Loves Large Chests - What did Mimic do with the Golem Tower core?

Spoiler Alert! What did he do with the core?

Spoiler: Spoiler if you have not yet read the about the Golem Tower

I am currently at the part where Boxxy summoned the 2nd Overlord and she Ice Sealed a town.

I must have fast read the part where he put it. I forgot what he did to the dungeon core from the Golem Tower? If I remember correctly it was big right, not able to fit in his storage. I also remember that when they were out of the dungeon it showed a status regarding dungeon management.

Thanks for the help!

 

Spoiler

Because it is loosibg mana it shrunk and he was able to store it

 

Spoiler: Core

He uses it to establish his own base somewhere else.

 

He died