Gregor understood the seer's gift of prophecy.
His deep faith in the seer's ability came from his knowledge of this world's known course of events.
In the year 276 A.E., Lord Tywin had organized a tournament in Lannisport to welcome King Iris on his tour of the Westerlands.
At that time, the Lord Tywin's daughter Cersei Lannister, and Jeyne Farman from Fair Isle, and Melara Hetherspoon, daughter of Ser Tybolt Hetherspoon, all came to Lannisport.
When the three children heard about the seer who could foresee the future, their curiosity got the better of them, and they snuck away from the adults to find her together.
Melara was the eldest at eleven, Cersei was ten, and Jeyne was the youngest at nine.
When the seer sat behind the cluttered table filled with bottles of herbs and potions, brushing aside her long hair and opening her pale yellow eyes, Jeyne screamed in fright and ran away immediately.
But Melara and Cersei stayed, insisting on hearing their futures, only to be refused by the seer.
At just ten years old, Cersei threatened the seer, saying if she did not reveal the prophecies for her and Melara, she would send her family soldiers to burn down the seer's house and hang her from the tree outside the gate.
Under pressure, the seer reluctantly told the girls their futures.
The first prophecy was that Cersei would marry the king at seventeen and become queen.
This filled Cersei with joy because her father was planning to propose on her behalf to King Iris at the banquet, hoping to marry her to Prince Rhaegar. Cersei had already met Rhaegar and liked him very much. At that time, she assumed the king she would marry in seven years was Rhaegar Targaryen.
The seer's second prophecy was that Cersei would have nineteen children, sixteen of them fathered by the king, and the remaining three were hers alone. At the time, young Cersei didn't understand, but now she did.
The third prophecy was the most chilling: her children would be wrapped in gold shrouds, and when Cersei mourned their loss, she would be strangled by her own brother.
The first two prophecies had already come true, and the third haunted Cersei's life like a shadow.
The seer also predicted the future of eleven-year-old Melara. She told Melara that her wish to marry Jaime would never come true, and, in fact, that very night would be the night she died.
"Little one, the Angel of Death will come for you tonight. Can you not smell her? She's right beside you." The seer hinted that the one who would kill Melara was her playmate, Cersei.
In a rage, Cersei grabbed a bottle from the table and smashed it in the seer's face.
Melara refused to believe the prophecy, but it came true. That night, Melara drowned after falling into a well. She had been seen close to Jaime by Cersei, who lured Melara to the well and pushed her in.
Melara's body was pulled out the next afternoon.
By then, Gregor already knew this wasn't Cersei's first murder.
Jeyne Westerling's queen sister, Cersei, was a beautiful monster, ruthless and cunning, not someone easily dealt with.
That same year, not long after, another incident happened by the water pool in the Lannister household. Cersei tricked her three-year-old "Little Devil" brother Tyrion Lannister to the pool to look at the fish, then pushed him into the water.
Tyrion struggled in the water, his cries alerting the servants who saved him. When their father asked Cersei, she claimed Tyrion had fallen in by accident.
Tyrion, born with deformities and causing his mother's death in childbirth, was despised by their father Tywin and hated by Cersei.
Gregor also knew that shortly after Tyrion's birth, Cersei had secretly taken scissors to kill him, stopped only by her twin brother Jaime.
Though Cersei made several attempts on Tyrion's life, she never succeeded. Eventually, Tywin learned of her schemes. Bound by honor and faith in the Seven, and unable to deny Tyrion was his blood, Tywin was forced to protect Tyrion. He gave orders that servants be assigned to care for Tyrion, forbidding Cersei from coming near him.
Only then was "Little Devil" Tyrion Lannister able to survive and grow up.
Because Gregor knew these dark secrets hidden from outsiders, he trusted the seer's gift wholeheartedly.
Having a powerful seer among his kin, Gregor decided to make use of her.
In this mystical world where magic and dragons were rising, Gregor needed not just fierce warriors but also a sorcerer's aid.
The seer was the best candidate.
As a witch, she spent her days and nights brewing strange potions. Her two sons had left her, they neither wanted to be merchants like their father nor mystics like their mother. Instead, they started their own families and worked hard, aiming to be nobles promoted by Lord Tywin.
After her husband died, the seer lived alone, like an old hermit, despite her sons' presence in Lannisport.
Though her sons founded the Spicer family, they died before her. One left behind Rolph Spicer and Sybelll Spicer, while the other left Samwell Spicer.
Though her bloodline survived, the seer had grown accustomed to solitude. After her sons' deaths, her grandchildren lost contact with each other.
Gregor was the first of the Spicer descendants to seek her out.
No matter what Jeyne and Lord Gawen thought, Gregor was determined to bring the seer to Clegane's Keep. When he planned the construction of the Seven Gods Chapel, he had already decided the chapel would need a priest, and his army would need a maester, a military chaplain. No matter how he looked at it, the seer was the perfect choice.
Under Gregor's earnest guidance, Jeyne and Lord Gawen stepped forward to greet the seer as family.
The seer said, "Gawen, how is Sybell?"
"She is well, Grandmother."
"And that scoundrel Rolph?"
"He is well, too."
Rolph Spicer was Jeyne's uncle. After Sybell married Lord Gawen, Rolph came with her to Clegane's Keep. He was a fierce warrior with a broken nose and a scarred face, looking brutal.
This time, Rolph did not accompany Gawen to Clegane's Keep. Whenever Gawen left, Rolph acted as deputy lord of Crag; one of them always stayed behind.
"Grandmother, I've built the Seven Gods Chapel for you, with a special apothecary room and servants just for you. Come with us to Clegane's Keep. From now on, let us care for you properly." Gregor spoke respectfully and sincerely.
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