by Jules Verne, freely adapted as a serial in eight parts by Lance Sieveking

It is now the middle of July 1867; and Professor Aronnax, Elbow, and Ned Land have been Captain Nemo's prisoners on board the Nautilus for ten months, and have travelled hither and thither under the sea - nearly eighteen thousand leagues, which is approximately fifty-four thousand miles.

There is a queer feeling of aimless-ness. They have long ceased to be astonished at anything the strange Captain Nemo does. He has shown them mermaids swimming among the ruins of the sunken continent Atlantis. He has nearly wrecked the submarine under the ice at the South Pole. With Nemo they have walked in submarine forests: dressed in the breathing-machines he invented, and with electric guns have hunted horrifying monsters.