eng:

egg stage: this egg is hardly visible 

hatch stage: this hatch can turn invisible.

Hatchling stage: this hatchling can access two dimensions

Adult stage: It is a ghost dragon that can access the death dimension and turn invisible

It is also very hard to find, during the day its invisible and during the night it doesnt leave the death realm. It has a special ability to ruin the sleep and cast nightmares. They are revered as monsters of the dreams, dispelling light and giving nightmares to the one protected by starry dragon.