[Sage Succession] Another Cause and Effect

I feel like I've carried out all the necessary procedures I could remember from the past, and yet, it still doesn't activate... That's a shame, but I think there's nothing more that I can do. Hmm, regarding the Ancients and their relics, maybe meeting with Tantu, heir to the ancient race of giants, would be of some use to you. He should know a thing or too about Ancient relics...

Go seek out Tantu, who watches over the Mausoleum. He may be able to help you out.

Well met. I feel we've already been acquainted before... my memory's a bit hazy, but I definitely have seen you from somewhere. You appear to have come a long way to find me. We're in no hurry, so please tell me everything.