Joined: 30 Aug 2006
I think Esher knew the Bahro were very powerful and he coveted that power, wanted it for himself. He was trying to find out what caused them to have that power, so he did experiments on them. He was afraid of them because he knew what he was doing to them was wrong, but he didn't care that it was wrong, he just wanted that power. Same as the history of D'ni. It's all about power, the more you have makes you that much better than everyone else.