Shimmer-scale Dragons are a very beautiful breed with small—but highly reflective—scales that shimmer and shine as the dragon moves through water. They don’t have fins or webbed feet, but their long, eel-like bodies allow them to swim quite fast. They were once rumored to carry large pearls in their claws—causing many to seek them out in search of this fabulous treasure. In reality, the “pearl” is of greater value to the dragon, for the fabled treasure is actually an egg carried by a migrating female.

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.

Sansa doesn't know why she's Cireth's favourite shimmer but she knows that Cireth insists that she has many mates because she is her favourite. Although she likes and gets on well with most of her mates the only one she loves is Braedan. She would be very happy to have Braedan as her only mate for the rest of her life. She loves Braedan to bits and the only thing that keeps her from running away with him is the knowledge that Cireth would use magic to bring them back.

Sansa wishes that Cireth wouldn't keep giving her children away and keeps a close eye on her absent offspring with the help of Cireth's magi dragons. She keeps in touch with letters and Cireth's skywing dragons are usually happy to help by acting as a high speed messenger service. Sansa writes at least one letter a month to each of them and sends them all a Yule gift in December. She's happy that Cireth kept her daughter Catelyn but she misses the others a lot. If she got her way all her children would stay with her.