在拍卖会会场，为了竞标最后登场的“EXILE之门”，亚力克斯和另一位身分不明的人士之间展开了一段激烈的喊价。在这同时，进入了终盘战的八小时耐力赛，也由于克劳士机与迪奥机之间几乎不分轩轾的竞争，让塔琪安娜机顺利完成了任务。

在拍賣會會場，為了競標最後登場的“EXILE之門”，亞力克斯和另一位身分不明的人士之間展開了一段激烈的喊價。在這同時，進入了終盤戰的八小時耐力賽，也由於克勞士機與迪奧機之間幾乎不分軒輊的競爭，讓塔琪安娜機順利完成了任務。

Claus and Lavie progress in the endurance race, but Dio and Lucciola continue to challenge them. Duke Henry Knowles raises the bid price on the Exile artifact, spurring interest among the other auction participants. As Alex attempts to outbid the others, Guild Maestro Delphine Eraclea challenges him and finally raises the bid price to 50 billion Claudia, at which point one of Knowles's men puts a gun at the back of Alex's head, threatening him not to continue bidding. On their final pit stop, Tatiana and Alister pick up a cargo of explosive charges for their mission. When the auction ends, Duke Knowles takes Alex outside and reveals that he wants to avenge the death of his son, captain of the Goliath. Claus and Lavie pull ahead of Dio and Lucciola in the final lap after only filling part of their fuel tank at the last pit stop to lighten the vanship and win the race. At precisely midnight, the explosive charges dropped by Tatiana and Alister destroy Horizon Cave's power generators, leaving it in darkness. Seizing the opportunity, Alex kills Knowles's men and escapes. When the artifact is taken to Delphine, it is discovered to be fake. The true artifact of Exile is revealed to be a Mysterion, one of four phrases with corresponding answers that will reveal the secret of Exile. Graf, the butler of House Hamilton, entrusts Alvis and the Mysterion to Alex. After the race, Lavie tells Claus that she does not want to fly in a fighter vanship but will continue to serve as his mechanic. Claus understands her decision and makes a promise that they will fly together again to cross the Grand Stream. Dio and Lucciola, who are able to see in the darkness, offer to tow Claus and Lavie out of Horizon Cave to the Silvana.

La course se poursuit. Claus et Lavie sont bien placés mais harcelés par Dio et Lucciola. Tatiana et Alistair poursuivent la mission confiée par Alex pendant que ce dernier participe aux enchères mettant en vente un objet lié à l'Exile.

Das Vanship-Rennen geht in die alles entscheidende Phase. Klaus und Lavie haben es mit großer Mühe geschafft nahe an der Spitze zu bleiben. Während die beiden verbissen um den Sieg kämpfen, begeben sich Tatiana und Alister auf eine geheime Mission.

Mentre prosegue la gara di durata tra vanship all'asta prima il duca Knowles e poi gli altri partecipanti vanno al rialzo, ma Alex è disposto a mettere in gioco qualsiasi cifra.

ホライゾンケイブ・8時間耐久レースは中盤に差し掛かっていた。レースに集中するクラウス＆ラヴィ機。レースと並行して謎の作戦行動を行うタチアナ＆アリスティア機。クラウスと遊ぶ事しか考えていないディーオ＆ルシオラ機。やがてレースは佳境に入ってゆく。一方オークション会場では、“『エグザイル』の扉”の競りが進んでいた。どんどん値がつりあがる中、闇の中から凄まじい形相でアレックスを睨みつける者がいた…。