Incomplete story idea, Pt.1. (Late 70s?)

In truth, "BLue-aire," as the age was known, began even as the Ky warriors returned victorious from war with the Balon of the West. In the minds of the Ky, the Balon were conspiring sorcerers (they had primitive factories from which constantly belched smoke). It was declared by old Smitheroff, King High over Kyoliomontrom, that upon the arrival of his warriors, he would step down from the throne, to be succeeded by one of his sons. Smitheroff was dying, and he knew it.
As the large seafaring vessels docked on the river, thousands of people covered the hills of Gondik to welcome the victors. Many came to greet kin. Some came to see Prince Dachirus, the Mighty, with his falcon companion, Chyli. Dachirus, a great battle champion, felt sure that he would occupy the throne upon his return. Prince Marcen, who had remained home, during the war, defending the homeland and keeping order, was also of the opinion that his brother would gain the throne.
After the homecoming, Smitheroff, King High, had many in-depth conversations with his two sons - often talking deep into the night. The brothers paid close heed to their father, as he spoke wisely of many things.
It wasn't long before Smitheroff, King High, did indeed depart to join his ancestors. Before his death, though, he told his sons of The Retlaw - a book of universal truths and laws governing those truths. In ancient times, the book had belonged to the Ky, but it had been lost, many, many years ago, during the War of the Separatez, when the Ky fought the Jermonz. Later, it was rumoured to be in the possession of the Knowlings (as the Ky called them), of the East. The Knowlings were a very ancient race. The old Ky tales said that the Knowlings needed no food or water, but existed on thought and knowledge. No one from Kyoliomontrom had ever seen a Knowling, but they feared them, considering them evil.
Old Smitheroff, King High, also imparted his decision in the matter of the throne: Marcen would be king.
Marcen was a born ruler. He was confident, calm and humane - but as brave and as willing to fight, if need be, as his brother. Dachirus, while a great warrior, was hot-headed and prone to violent outbursts. There seemed to be a madness in him, sometimes, which compromised his ability to make wise decisions. As a kind of consolation, Dachirus was given a large piece of land in the kingdom and a chest of gold and jewels - and the knowledge that if anything should happen to his brother, or his brother's line, that he, Dachirus, would gain the throne.
As time passed, Dachirus became more and more angry over his father's decision. He fumed and stomped about in his castle. The servants were terrified of him. Then, one night, he saddled up his horse, gathered a few men, and disappeared. After many months, Marcen received a report that his brother was in an extreme out-lying area of the kingdom, assembling an army and speaking publicly about attacking the Knowlings. It was rumoured that he desired the Retlaw - and was proclaiming himself "Lord Ky."