Kobalt

Kobalt was an adult male Kyanitian human briefly mentioned in Book 2. He was the father of Alatrix, who he had with his first wife, Spear Copperhead, and Fauna, who he had with his second wife, Posion-Ivy Treble.

Prior to the start of the series, Kobalt sacrificed himself so Poison-Ivy and their newborn daughter, Fauna, could escape from Kyanitian soldiers.

Appearance
Kobalt was described as an averagely-tall male with pale skin and very light freckles. His light blue eyes were wide and bright. His slightly-curly hair was dark blue, the colour of cobalt, and rested just below his ears.

Alatrix is said to look very similar to Kobalt.

Personality
Kobalt was an easygoing and sometimes careless man who often unintentionally criticized Queen Jade and her ways. But since he grew up in a small village, he never fell under Jade's radar of trouble. Kobalt spent his entire life, up until his death, making jokes and trying to lighten the mood of others.

Despite being loyal when it came to the Cyclone Rebels, Kobalt did occasionally resort to his old habits of criticizing; the smallest details would cause him to think twice about his loyalties.

When the life of Fauna was in danger, Kobalt willingly sacrificed himself in order for Ivy Treble and Fauna to escape from Kyanite, showing his selfless and heroic nature.

Early Life
Kobalt grew up as a slightly rebellious child who loved playing practical jokes on everyone in his village.

Joining the Rebels
Spear was a new Rebel from Sakardan who's first mission was to recruit new Rebels; eventually she met Kobalt, and deemed him worthy to be a Rebel. Kobalt instantly joined the Rebels, and eventually married Spear.

The birth of Alatrix
Alatrix was born to them, but only a month or so later, Spear was captured by Sakardanese scouts. After spending over a month in captivity, Spear committed suicide in the prison before she could be tortured for information, or killed via the Rebel Spell. The only woman who could be Alatrix's wet nurse at the time was Ivy Treble, the leader of the Rebels, who had lost her own daughter very recently. Alatrix is then raised by Ivy, who proclaims him to be her heir.

The birth of Fauna
Kobalt eventually marries Ivy, helping her run the Rebels. Fauna is born to them ~six years later, but she has a Heartstone, unlike Alatrix. To activate the Heartstone, Kobalt convinced Ivy that they had to take the newborn to the nearest (Birthstone?), in Black Diamond Village. Fauna is taken there under the cover of night, and is given the Kyanitian name of Iolite.

Death
On their journey back, a squad of Kyanitian scouts finds and stops them. When they see that Ivy isn't Kyanitian, they plan to capture her. Kobalt sacrifices himself to let Ivy and Iolite (Fauna) escape.

Legacy
Ivy renames Iolite as Fauna, which was the name Kobalt had picked out for her before her birth, unaware that his daughter would be born with a Heartstone.