The books are dark and full of foreshadowing

[no one]

“Eroeh?” asked Dany, remembering the frightened child she had saved outside the city of the Lamb Men.
“Mago seized her, who is Khal Jhaqo’s bloodrider now,” said Jhogo. “He mounted her high and low and gave her to his khal, and Jhaqo gave her to his other bloodriders. They were six. When they were done with her, they cut her throat.”
“It was her fate, Khaleesi,” said Aggo.
If I look back I am lost. “It was a cruel fate,” Dany said, “yet not so cruel as Mago’s will be. I promise you that, by the old gods and the new, by the lamb god and the horse god and every god that lives. I swear it by the Mother of Mountains and the Womb of the World. Before I am done with them, Mago and Ko Jhaqo will plead for the mercy they showed Eroeh.”
The Dothraki exchanged uncertain glances. “Khaleesi, “ the handmaid Irri explained, as if to a child, “Jhaqo is a khal now, with twenty thousand riders at his back.”
She lifted her head. “And I am Daenerys Stormhorn, Daenerys of House Targaryen, of the blood of Aegon the Conqueror and Maegor the Cruel and old Valyria before them. I am the dragon’s daughter, and I swear to you, these men will die screaming.”