Id like to make a stone to leave factions

This doesnt work :(


C#:
public override void OnDoubleClick( Mobile from )
        {
            if ( from.InRange( this.GetWorldLocation(), 1 ) )
            {
                from.CloseGump( typeof( LeaveFactionGump ) );
                from.SendGump( new LeaveFactionGump( this ) );
            }
            else
            {
                from.LocalOverheadMessage( MessageType.Regular, 906, 1019045 ); // I can't reach that.
            }   
                    
        }
    }

}


Or could anyone do it with a keyword? like ''leave faction''
 
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