On the Builder's Trail

 is a main quest in Torment: Tides of Numenera.

Synopsis
I've learned the name of the castoff who helped build the resonance chamber. He's called Mazzof, a talented builder and artificer. I hope to find him in Miel Avest, a refuge of sorts for my castoff 'siblings.'

Walkthrough

 * To get to the Valley of Dead Heroes, you need to talk to Master Rennio. Head to the Valley.
 * In order to reach Miel Avest, you need to gain access to the First Castoff's Tomb, which means completing The Caretakers' Riddle.
 * Miel Avest can be entered by simply interacting with the mural and touching your head against it.