Alto
Gary Stuart would not be able to answer, but Bloodrune was watching for any messages from Alto, with Plantmaster at his side. After playing a game of rock-paper-scissors in order to see who would answer first, Bloodrune would text, to Alto:
<Plans have changed. Offer them information about The Voice in exchange for their help. Said information is that The Voice's signals come from Avalon, Aperture's official, privatized Meta-Prison.> Then, Plantmaster spoke:
"Shall we tell him about his employer now? What could be the harm?" Plantmaster liked Alto, seeing in him the Anti-Ruby.
"Fine," replied Bloodrune, and texted: <Oh, and your employer is StuCorp; don't tell anyone not of the FBI and their affiliates.>