void main()
{
object oPC = GetEnteringObject();
object oKeystone = GetObjectByTag("keystone");
int nHP = GetCurrentHitPoints(oKeystone);
if (!GetIsPC(oPC)) return;
int DoOnce = GetLocalInt(OBJECT_SELF, GetTag(OBJECT_SELF));
if (DoOnce==TRUE) return;
if (nHP >= 1)
 {
 SetLocalInt(OBJECT_SELF, GetTag(OBJECT_SELF), TRUE);
 AssignCommand(oPC, ClearAllActions(TRUE));
 SetCutsceneMode(oPC, TRUE);
 AssignCommand(oPC, ActionMoveToObject(oKeystone));
 DelayCommand(5.0, SetCutsceneMode(oPC, FALSE));
 DelayCommand(5.5, AssignCommand(oKeystone, ActionStartConversation(oPC, "")));
 }
else return;
}