From the diary of Cardinal Borusa.

It seems ΘΣ was the one who suggested going to the Medusa Cascade, so I can only conclude Koschei decided to engage in mischief while they were there. I suspect he went there planning already to seal the rift, no doubt under suggestion from that hermit. The boy shouldn't be allowed near him, the hermit has already given been influencing his opinions for half a century, I fear for his continued growth under the influence of the man, but as Ulysses sees no reason to stop the boys curiosity so we can't do anything about it unless we catch him in the act of sneaking outside the Citadel. Frankly the boy has more pressing matters anyway. He's still got 10 years before he can expect to graduate for the academy for his further pursuits, and yet he's planning to marry. I'm perfectly fond of his betrothed, but I can't see their relationship lasting beyond the first regeneration. If he doesn't have any children it'll be OK, I suppose.

Braxiatel smoothed the whole issue over like I knew he would. Marnal made a charitable donation to the chapter which certainly had nothing to do with Koschei's getting off.