“Lopen,” Huio said in Herdazian. “This aluminum has fascinating properties; I believe the captive spren are reacting to its presence, almost like prey react to a predator. When I touch this foil to the stone, they push to the other side of their confines. I hypothesize that the aluminum interferes with their ability to sense not only my thoughts of them, but the thoughts of their conjoined half.”
