This might be a spoiler...
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After convincing Stale-Mary to let me see the Silent King, I entered the portal into the throne hall. Going through the dialog options, I ended by making a vow to keep my silence in exchange for my freedom.
But after finishing the dialog (with my journal updated & having gained the experience), everyone turned hostile on me. I load my saved game before entering the portal & found out that because my party (only Nameless One & Morte a.t.t) wasn't on FULL HEALTH, Hargrimm starts casting healing spells. It seems the casting triggered the hostile reaction, and even Hargrimm too became hostile...
Anyone else can confirm this? Thanks...
p/s
this is even after installing the official patch & Platter's unofficial fix...
Potential bug?
This could be it;
http://forums.planescape-torment.org/viewtopic.php?t=14
http://forums.planescape-torment.org/viewtopic.php?t=14