In my as yet to be published series about a teen witch who can't spell worth a damn, our erstwhile heroine gets a little help from an unusual source. Did you ever wonder why there are so few sightings of the Loch Ness monster? Well, Nessie vacations on Ultima Thule, which may be the remnants of Atlantis.
She's not fond of the name Nessie or Loch Ness Monster and prefers to go by Ceto. From http://encyclopedia.thefreedictionary.com/Ceto :
In Greek mythology, Ceto or Keto (Greek: English translation: "sea monster") was a hideous aquatic monster, a daughter of Gaia and Pontus. The asteroid (65489) Ceto was named after her, and its satellite (65489) Ceto I Phorcys after her husband. She was the personification of the dangers of the sea, unknown terrors and bizarre creatures. Eventually, the word "ceto" became simple shorthand for any sea monster. The term cetacean represents a case in point. Her husband was Phorcys and they had many children, collectively known as the Phorcydes or Phorcydides. In Greek art, Ceto was drawn as a serpentine fish. Ceto also gave name to the constellation Cetus.
Ceto and Nessie become one. She's not a bad, um, person, but much misunderstood. She finds my heroine adrift in the northern seas sitting on a block of ice. Oh, yeah, the block contains the body of her father. Ceto finds this all fascinating and helps my heroine dock the ice block at Ultima Thule and find a messenger to send for help from the Witches' Island of Galdorheim in the Barents Sea.