Fathom

Fathom was an adult male SeaWing prince who was introduced in Darkstalker. He was an animus dragon, although he rarely used his magic. He was in a relationship with Indigo and his last known location was an island near the Rainforest Kingdom.

Appearance
Fathom had sea-green scales that glow emerald-green in sunlight, as well as gray-green eyes the color of miniature oceans after a storm. He looked very similar to his descendant, Prince Turtle.

Personality
Fathom was a mostly carefree dragonet, although expectations from Lagoon often distressed him. Although he developed anxiety after the Royal SeaWing Massacre, he had always been nervous and a bit awkward even before the incident. Prior to the massacre, Fathom was humorous and did not seem to take his royal title very seriously, despite several warnings from Queen Lagoon.

The massacre, however, which resulted in the death of his parents and several other family members, was a traumatic event for Fathom, which resulted in him becoming depressed and lonely. He often felt guilty and ashamed of the fact that he was an animus dragon, especially since he was discriminated against and hated after the event. Fathom's sister, Queen Pearl, put a law in place by which animus magic use was banned, and she did not seem to care much for Fathom's well-being. Most stayed away from him, and were quite passive aggressive. After Fathom was sent to the Night Kingdom to convince the young animus Darkstalker that using animus magic was dangerous, he regained a sense of purpose. He cared for his friends Clearsight and Darkstalker and loved Indigo deeply. He is compassionate, fair, thoughtful, and kind. But even after the event with Darkstallker and the Royal SeaWing Massacre, they still haunted him at his last appearance.

Albatross
Fathom saw Albatross as his teacher, his mentor, and his friend as his grandfather trained him in the ways of animus magic. Fathom desperately wanted to win his approval, trying to seem 'enthusiastic and full of ideas.' After Albatross murdered the Queen, Fathom didn't want to kill him, trying to convince himself that it was a mistake and Albatross didn't mean to kill Lagoon. Ultimately, what caused him to kill his grandfather was when he badly hurt Indigo but after the massacre, Fathom still mourned him deeply.

Clearsight
Fathom cared about her very much after their first meeting. He trusts her better than he trusted Darkstalker, working with her to take him down. He, Darkstalker, and Clearsight formed a very strong friendship bond.

Darkstalker
Darkstalker was one of Fathom's best friends. Darkstalker enchanted a bell to ring whenever Fathom was feeling down or lonely. But he had other plans as well. Darkstalker enchanted a glass goblet to when Fathom first drinks from it, he will stop loving Indigo and freely use his animus magic again. When Fathom read Darkstalker's scroll, he decided to use his magic to take him down.

Indigo
When Fathom first saw her, he fell in love with her. He wanted to spend more time with her than anyone else. They often teased each other and they spent a lot of time near each other. After the Royal Massacre, he made a vow to not go near Indigo for the risk of hatching more animus dragons but it felt as though his wings had been cut off. He missed Indigo dearly. A year later, she requested to go as a bodyguard with him along with Wharf and Lionfish to the Old Night Kingdom. He had been surprised and happy at the same time. She immediately distrusted Darkstalker the moment she met him, smashing the goblet that he had enchanted to put a spell on Fathom. During his stay at the night kingdom, he tried to stay away from her but he didn't want to, which made him act oddly in front of her. It ends with Fathom marrying Indigo and hatching three dragonets, Clearpool, Ripple, and Cowrie in the epilogue of Darkstalker.

Lagoon
Fathom seemed to respect the Queen but he also disliked her due to her being mean to Indigo, calling her ‘low born purple dragonet'. Fathom also stated that the only time he got really angry was when Lagoon ordered Indigo to go deep-sea shrimp fishing because they had run out.

Manta and Reef
Fathom was very close to his parents, mourning them when they died. Fathom also mentioned that if an assassin were to be sent after him, his father would have checked if he was OK.

Pearl
Fathom seemed to love his sister very much, worrying over her when she was bleeding and it seemed that Pearl loved Fathom too, even though she was always sighing about how immature Fathom and Indigo w