Lost for one year, or, Adrift on a water-logged ship (chapter 1-2), The Ten=Day Island, or, The secret of Old 33 (chapter 16-17), The secret of the cross of gold
The boy divers, or, The mystery of the sunken ship (chapter 8-9), The Ned, Bess and myself, or, The search for the king's lost gold mine (chapter 12-13), An adventure with a ghost