Wren and Theo hear Harrowbarrow approaching to devour New London. Wren boards it whilst Theo warns the Londoners of the approaching city. Wren confronts Wolf, and tricks him into diverting Harrowbarrow into an area that is full of energy left from MEDUSA. The Green Storm arrives and attacks, though Wolf continues ahead, having dealt with the Green Storm before, but Harrowbarrow is damaged by MEDUSA's left-over energy. Theo boards it and finds Wren, but Harrowbarrow starts moving again. Naga, informed of Harrowbarrow's approach, realises his error and defends New London, which finally begins to move, with Harrowbarrow in pursuit. Wolf confronts Wren and Theo on Harrowbarrow's back, but Wren accidentally kills Wolf when Naga's airship arrives and rescues them. Naga drops Wren and Theo on New London and pilots his airship straight into Harrowbarrow in a kamikaze attack, destroying the city and allowing New London to escape.