* @param direction The direction of a rumour.
     */
    private void moveExplore(Unit unit, Direction direction) {
        Tile tile = unit.getTile().getNeighbourOrNull(direction);
        if (gui.showConfirmDialog(unit.getTile(),
                StringTemplate.key("exploreLostCityRumour.text"),
                "exploreLostCityRumour.yes", "exploreLostCityRumour.no")) {
            if (tile.getLostCityRumour().getType()
                == LostCityRumour.RumourType.MOUNDS
                && !gui.showConfirmDialog(unit.getTile(),
                    StringTemplate.key("exploreMoundsRumour.text"),
                    "exploreLostCityRumour.yes", "exploreLostCityRumour.no")) {
                askServer().declineMounds(unit, direction);
            }
            moveMove(unit, direction);
        }
    }