<p>Professor Challenger summons his three best friends to come to his country house each one to bring a cylinder of pure oxygen. When they arrive the reason for this strange request becomes terrifyingly clear. Professor Challenger has become convinced that the earth is entering a poison belt of ether and that life upon this planet is doomed.</p> <p>In a sealed room to the sound of the slow hiss of escaping oxygen Professor Challenger and his friends wait out the night as humanity prepares to meet its fate…</p> <p>Also included in this volume are two other famous Professor Challenger stories “When the World Screamed” and “The Disintegration Machine<em>.”</em></p><P>A Blackstone Audio production.</p>