Deep Sea Dragons, as their name suggests, spend most of their time in the darkest depths of the sea. They have a bioluminescent dorsal spine that serves to attract prey and communicate with their own kind. As with many deep sea animals, they generally eat whatever they can manage to bait. They rarely leave the ocean floor, surfacing only during breeding season. When they do choose to travel to the shallower depths, they avoid bright lights and will only come up far away from shore.

Dragons are highly-intelligent reptilian creatures that—from a human perspective, at least—appear to live forever. Many different varieties of dragon exist, each with their own unique qualities, habitats, and behavior. Adolescence in dragons is usually marked by the growth of a hatchling’s wings, although not all breeds of dragons grow wings and some breeds have other traits that indicate the beginning of maturation. In Galsreim, dragons and humans coexist peacefully.

Melody of Crypts and Helium sings a song of a land that is filled with darkness, a land void of all life, except for the flowers struggling to find root in the cracks filled with helium.

She says that she dreams of this land every night, but most don't believe her. The land seems too... desolate to actually exist—filled with gray crypts of skeletons that spiral up towards the sky, obelisks marking the sites of shallow graves, strange seed pods in vibrant colors that float towards the void, filled with helium.

But they know that the song she sings is deep, far deeper than all the rest of her friends'. It's both beautiful and sad, like the others, but the dragons can tell that there's a story in the seemingly unconnected words.

It's frustratingly difficult to piece everything together—most likely impossible, though. The Melody of Crypts and Helium doesn't explain any of it. She simply sings her song and drives glass into unwitting hearts.