Iedcaru (Marching Tower)
Investigating the tower, the party discovered the ground floor was a large library full of books on the multiverse and obscure theories on it along with many reading areas and meditation nooks. There was a crystal sarcophagus with a long dead githzerai scholar inside. Its eyes had been replaced with bronze ones and if you talked about a subject, the eyes would look at where that subject could be found in the library. Also, one of the candles in a meditation nook pinged as magic, so it was gathered and will be examined later.
The tower had been abandoned and later taken over by tiefling bandits.