"Hell's Gate" and "Hell Hath No Fury", by David, Linda Evans, and Joelle Presby, take the clash of science and magic to a whole new dimension...join us in a friendly discussion of this engrossing series!
I was wondering, from the last POV of Gadrial we see in Road to Hell, it seems to me like Shaylar broke. What gives me this impression is that considering her reaction to Arcanan war crimes, and how Shaylar and Jathmar have been almost in lockstep on their opinions of Arcana, I wouldn't be surprised to see that she finally broke. And finally given how she just acts all nice and cheery to Gadrial the next time she meets her, it seems like a psychopath situation is setting up here.
It's sounds like you think shaylar had a psychotic break? I don't think so. And she wasn't happy and chipper when she saw gadrial again, she was emotional and crying.