Sailles waited until she was certain the vampire was in hibernation before sitting up. She got off her wide bed and closed her eyes. When she reopened them again, she was in her snake form.
Stretching her form, her purple-dark eyes furrowed in confusion as they swept over her black-gold striped tail.
Last she remembered, her snake tail was gold.
So how did it become black-gold?
Serpentine color scales never changed. They were a part of the serpentine's identity, giving a glimpse into the serpent's true identity and ability. And as a mirror to the serpentine's character and personality, the color never changed, only slightly deepening with time.
In her past life, Sailles was a red serpent well known for her fiery temper. She neither took no for an answer and nor ever allowed any beast to wrong her. As such, whenever any beast saw her, they would stir clear of her.
Over time, she was given the nickname fiery serpentine.