Eel (Books)

Eels are a type of fish mentioned briefly in the How to Train Your Dragon Book series.

Description
Eels are long snake-like fish from the Order Anguilliformes, comprised of about 800 species worldwide. Most are carnivores of some type. Eels are typically a food source for humans, but must be cooked prior to ingestion as their blood is toxic.

Conger eels are a group of Eels in the Genus Conger. Historical Vikings may have encountered the European conger (Conger conger), which occurs along the Eastern Atlantic coast line from Norway down to the Mediterranean Sea. European congers can grow over 6 feet long (females) and are carnivores, eating other fish and crustaceans. They are grey in color with a pale grey-white belly.

Hiccup: The Viking Who Was Seasick
Hiccup sees "eels that lit up like lightbulbs" while he steers a Viking ship home after a big storm at sea, in Hiccup: The Viking Who Was Seasick.

How to Be a Pirate
Congers are mentioned in How to Be a Pirate when describing the sharpness of the swords found amongst the treasure in the Caliban Caves.

"Gorgeous silver cups with seahorses galloping delicately around them and golden necklaces as plump as oysters and swords as sharp as a conger's tooth with octopus tentacles winding themselves around the hilt."

- Book 2

How to Speak Dragonese
Camicazi, the Bog-Burglar Tribe heir, often refers to her people as "slippery" or "wriggly" as eels.

"You can't keep a Bog-Burglar under lock and key. No prisons can hold us - we're as wriggly as eels."

- Camicazi in Book 3