basically, the blue one(Lace Agate) had a single dragonet named Kori, who was always talking to herself and stuff. The father died and Lace Agate married Permafrost, the yellow-gray one, who was the daughter of the Icewing queen at the time. The relationship quickly fell apart as Permafrost became more and more abusive towards both. Eventually, she convinced Lace Agate to abandon Kori on an especially cold night. Kori was left in the blizzard, where she met a Nightwing dragonet named Half Moon. They led Kori to a small school near the border with the Kingdom of Sand and asked her to create a cult in their name. Half Moon was an animus dragon who had been trapped within the mindscapes for thousands of years. Kori agreed and found the Bloodstone. Even though she was around three, she used the powers of the stone and her own manipulation skills to form the greatest cult in Pyrrhia. After years of abuse back in the Ice Kingdom, Lace Agate killed Permafrost and went looking for Kori, refusing to believe she was dead. However, Kori found her first. She was captured and brought before Kori, who recognized her in an instance. She did not forgive Lace Agate or even make a truce between them, but allowed her into the cult, for far worse dragons had joined before. Lace Agate served the cult loyally until the one who preformed the sacrifices, Shi, betrayed the cult an attempted to kill Kori. Lace Agate, determined not to lose her dragonet, fought Shi and was killed in the process. Kori fled, but was later hunted down by the Icewing tribe, who wanted to punish her for the murder of Permafrost. Kori was executed that night and Half Moon remained in the mindscapes for a few hundred more years until finally being released and wreaking havoc on the continent, ressurecting her "friends" that she'd made over time including Kori.
