public override void LookupByZone(string zone)
        {
            if (_lookupByZone != null)
            {
                var sql = String.Format(_lookupByZone.SelectQuery, zone);
                var results = QueryHelper.RunQuery(_connection, sql);

                NPCs.Clear();

                foreach (var dict in results)
                {
                    var npc = new Npc(_queryConfig);
                    npc.SetProperties(Queries, dict);
                    AddNPC(npc);
                    npc.Created();
                }
            }
        }