Verne Sequels 4

Le tour d'un autre monde en quatre-vingts jours. Mr Tyne and his young friend, Hans Allerichtungen, are ballooning in central England when a spacetime anomaly deposits them over the surface of a strange world. They try to land, but the ground is covered with hostile, motile vegetation. They can see the portal through which they entered behind them; but the wind is strong and blowing them in the wrong direction -- the planet is dominated by a standing gale that blows from east to west. Somehow the must stay aloft, fed and watered for as long as it takes them to travel all the way around this dangerous new world, until they approach the portal again ...