>>531742879
>>531743305
Peter is the most likely culprit. He was always a reluctant, cautious ally. He never wanted the silver in his castle. His comments on the wall before Von Bergow revealed himself were to save face. He was going to advocate for negotiation until Hynek made it impossible.
The explanation for the escape was clearly bullshit. Zizka knows, and Henry is rightfully extremely skeptical. Zizka can't outright accuse Peter because that would risk Peter pulling his support for the defense, reputation be damned, and trying to barter a separate peace that may or may not include Zizka, Devil, and Henry. Zizka needs Peter's men, and everyone needs to believe Peter is acting of his own free will.
That's why that scene where Zizka preps Henry before their talk with Peter feels so weird. He has to stress the need for Henry's absolute show of support without making it too obvious why. As for why he didn't just explain all of that to Henry, who knows. This is just my theory but after several times playing through this section I feel very strongly about it. It just makes the most sense and explains why Peter and Zizka are acting so odd in the wake of Hynek shooting Von Aulitz.