[ Actually, that is very helpful so that Yuri can piece what Throne probably went through. ]

The bus was Mephistopheles and it fed upon the Enkaphalin, which is probably the green thing you talked about. People also produce small amounts of it from their spinal nerves and brain and the blood and flesh were used to power the bus in a different way. The bug people... were probably remnants of G Corp.

... So yes, you're right. It was Gregor and Rodya's work. I'm sorry you had to see that.