Fathom

 O little Child-Kin,  Know me: I am Fathom,  Mate of the Great Blue  And knower of its inner Ways  ''From Turnings beyond thought.  Your dry domain is blessed this Moon '' ''With a fallen Sky-Egg.  My Truth-drowned Mind wishes to reach beyond blessed Earth, '' ''To know what lies Beyond.  I have known the Lower Void, furthest depths of the Blue, '' ''And now I must know the Upper Void, the Above everlasting.  Thus shall I receive from you this Fallen Star '' And the wealth and mysteries which lie within.   - Fathom to Spiritkeeper, Meteor Strike event

Personality
Fathom is considered to be one of the seven paragons among the kin. Like Tempest, Fathom complies with tradition, choosing to barter with Spiritkeeper for the Fallen Star instead of seizing it by force, even though it could have done so easily. Additionally, similarly to Darktooth, Fathom is shown to be one of the more patient elders, hesitant to resort to violence as long as it is shown appropriate respect.

Little, if anything, is known about Fathom's life. It is known to be immensely knowledgeable, spending its life in pursuit of understanding of the world, but only because it opts to tell Spiritkeeper this on its own terms. No other dragons besides Darktooth are known to speak of Fathom, even in passing.

Meteor Strike
During Part 2, Spiritkeeper can encounter Fathom at the Meteor Strike event, where it will barter with Spiritkeeper for the Fallen Star. From this encounter, Spiritkeeper can obtain the Living Labyrinth, the Giant Pearl, or wisdom of scalebound goodbeasts depending on the player's choices.

The Grand Moot
During the Grand Moot, Fathom can be seen standing with the other elders, but it opted not to contribute to the discussion.