It was kind of like earlier in the Grayridge Mine, when Macoute insisted that the hero and the others were plotting his assassination and even Gilliam seemed dubious.
Well, Gilliam is kind-hearted (and Logan's friend) so I think he just tried to capture them.
I'm leaning towards holding her hostage and then "negotiating" with either her parents or the Magedom. He probably would have treated her as well as one can treat a hostage, because he really seems to be an honorable sort.
Probably. He's the leader of the self-named Liberation Army of Salsabil. So his goal was to free Salsabil. Hostage and negociations to make Salsabil independant was probably his idea.
Or maybe he didn't really have a plan--just rush in and see what happens.
With this game, everything is possible, but the hostage and negociations seems more serious.