chunk: The night before their execution, a hurricane strikes, and the São Paulo is pushed aground by the winds. The crew take this opportunity to break out and escape, while the battleship's crew are busy trying to save the ship. Using cover from the ship, which is acting as a shield from the waves and winds, Tom's group take to a lifeboat, and escape to the Advance, diving just in time to escape the Brazilian crew of the São Paulo.
  It is not long before the Advance arrives at the wreck. They struggle to find it at first, but soon are successful. In their extreme-depth diving suits, Tom and Captain West enter the waters where the wreck is, which is at a depth of over 2 miles—similar to the RMS Titanic. Sharks attack but are fought off.