void main()
{

object oPC = GetClickingObject();

if (!GetIsPC(oPC)) return;

if (GetItemPossessedBy(oPC, "sharkpriestkey")== OBJECT_INVALID)
   return;

object oTarget;
oTarget = GetObjectByTag("skdoorguard");

AssignCommand(oTarget, ActionStartConversation(oPC, "skdoorguard"));

}