Join the Octonauts in this fourth collection of exciting underwater adventures adapted from the popular children’s television series! The Octonauts are a team of quirky and courageous undersea adventurers who are always ready to dive into action. The Octonauts mission is to explore new underwater worlds, rescue amazing sea creatures and protect our oceans. 1. The Oarfish 2. Creature Report: Oarfish 3. The Combtooth Blenny 4. Creature Report: Combtooth Blenny 5. The Jellyfish Bloom 6. Creature Report: Jellyfish 7. The Baby Dolphin 8. Creature Report: Dolphins 9. The Scary Spookfish 10. Creature Report: Spookfish 11. The Arctic Orcas 12. Creature Report: Orcas 13. The Slime Eels 14. Creature Report: Slime Eels 15. The Enormous Elephant Seal 16. Creature Report: Elephant Seal 17. The Sardine School 18. Creature Report: Sardines 19. The Dolphin Reef Rescue 20. Creature Report: Dolphins