Meanwhile at Pegasus's castle, Kemo had caused the alarm to go off. Guards started searching for Seto, but they gave up and decided to tightn security around Mokuba's cell. Seto followed the guards to Mokuba's cell.
Back at the arena, Yugi old Joey that the destroy Gate Guardian they would have to take it apart piece by piece. Joey used his Flame Swordsman and attacked the middle section(Kazejin), but Suijin blocked the attack with its tidal wave shield. When Suijin blocked the attack, the entire maze was flooded with water. Joey's Flame Swordsman was destroyed(Joey's LP:1300), but Yugi's Dark Magician was protected by the Magical Hats. Yugi then set a card and then summoned Summoned Skull. Summoned Skull attacked and used the water on the field to guide its electrical attack.. The attack went through the maze and out onto the other side. The Paradox brothers tried to block the attack, but their gate Guardian couldn't move. They noticed that yugi had activated the Spellbinding Circle. Summoned Skull's electrical attack then destroyed Suijin(Dox's LP:900) and removed all the water from the field.
Para then played Remove Trap as his turn began to destroyed the Spellbinding Circle. Joey then summoned his Red-Eyes Black Dragon. Yugi then activated Polymerization and fused his Summoned Skull with Red-Eyes to create Black Skull Dragon. As Joey prepared to move theis awesome dragon, the brothers informed him that the maze field was a no-fly zone, meaning their dragon was unable to move through the maze. Dp then played Ryoku, taking half of yugi and Joey's life points and adding the attack points to his Gate Guardian. Yugi then took his Dark Magician out of the Magical Hats and moved it out of the maze. Yugi then activated Monster Reborn. Before yugi could tell the brothers what mmonster he picked, Para attacked with Gate Guardian. Suijin then appeared as the monster Yugi had chosen. Suijin blocked the attack,
Joey then played Copycat and copied Ryoku. The Paradox Brothers then lost half their life points and Black Skull Dragon's attack became 4000. Dox then attacked Suijin with one of the pieces. Suijin blocked the attack. Dox then attacked again with the other piece. Suijin wasn't able to block the attack and was destroyed. Bakura explained that Suijin was only able to use its effect once per turn.
Yugi then played Switch, switching the places of his Dark Magician with Black Skull Dragon. Black Skull Dragon attacked and destroyed Gate Guard, wiping out the rest of the Paradox Brother's life points. the two duellists then celebrated for having ten starchips each, but then the brothers reminded them about the puzzle.
Yugi then took out two coins that were each marked with a symbol. He would open the hand and reveal the brother he wouldn't choose. Yui then opened the hand with the symbol of Dox. The brothers then told him that he chose the wrong door and that Dox's door was the right one. Yugi then explained that no matter which door they picked, they would be wrong because the brothers could change the right door. Yugi the revealed his other hand and showed that this was the hand he had really chosen since the coin in it had both symbols, meaning they couldn't lose.
At the gang headed towards hr gith door, Seto had finallty found Mokuba's cell. He knocked out the guards and was preparing to free Mokuba when Pegasus arrived. Seto threatened Pegasus, but Pegasus told Seto that he was the only one who made threats in this castle. Pegasus then used his Millenium Eye and banished Mokuba's soul to the shadow realm. He showed Seto the card where his brother's soul was and told Seto that the only way to free his brother was to beat him in a duel. However to earn the right to duel Pegasus, Seto had to first beat Yugi in a duel. But will yugi duel Seto when he also wants to duel Pegasus.