Valentine eggs are only seen once a year. Adults’ mating seasons are very short, usually spanning a few weeks in the mid-to-late winter. These dragons were once reputed to be omens of good luck in love.

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.

Rosoline is a special dragon. She is rare and in myth symbolizes love. This can almost certainly be confirmed, since her, and her species, appeard on Valentine's Day. Most of the dragons, now called the Valentine's dragons, were hard to come by and there was a fierce competition between dragon owners to make their caves good enough for the dragons to want to live in them. This dragon joined the cave it is in now because the owner hung glass and clear stone in the entry. When the sun began to set, it made a beautiful glow and reflection that Rosoline found attractive. She flew to the cave that had the glass in it and decided that the dragons already living there were nice, so she decided to stay. Rosoline herself is a kind and quiet dragon. She gets along with all of the other dragons living in the cave, but, her best friend is Gaiven. They both like to take long naps together and drop small rocks on Leasia's head for fun.