You can get the Dragon who grants the evening sky its glowing red appearance in today's offer.
Sunset is most often seen soaring through the shimmering evening sky. Due to his red painted scales, he virtually blends in with the evening twilight. If you are one of the lucky few who spots Sunset just before night, it is said that you will have the most peaceful sleep and serene dreams.
The offer is valid until 17th April at 11:59 CEST and can be found under "Special Offers" in the in-game Marketplace.