Zach could smell a whiff of metallic rust beneath the smell of damp and fishy odor inside where he was chained in shackles. He could also hear a loud clang of metals and the sound of splashing waves. He knew he was confined inside a container that seemed to have already been loaded into a ship which had already set sail towards the open sea.
Leon was definitely a cunning and sly man who always had a well devised plan B, ready to put into action anytime to help him escape.
After Jeru left to bring Thea to safety, Zach was left fighting Draco on his own. At that time, several more of Leon's men had emerged from the lower decks of the Ghost Ship and managed to grasp him from behind. A gun was pointed at him but Leon, who miraculously had gotten up to his feet again after Zach's last blow, decided not to kill him, saying that Zach would still be useful to him as a bargaining chip with the authorities if necessary.