The Night Massacre
The war was over. The Pandavas had won. Ashwatthama — Drona's son, the last great warrior of the Kaurava side — walked into the Pandava camp at night.
He found the Upapandavas, Draupadi's five sons, sleeping. He killed them, thinking they were the five Pandavas.
He killed Dhrishtadyumna. He killed everyone he could find.
By morning, the Pandavas had survived — they had slept elsewhere. But their sons were dead, and Draupadi's grief was absolute.
The Cornering
The Pandavas rode after Ashwatthama. He was cornered by the river.
Ashwatthama had a Brahmastra — the ultimate weapon. He fired it.
Arjuna fired his own Brahmastra to counter it. The two weapons flew toward each other, and the cosmos shook.
Vyasa appeared between them and said: both men must withdraw their weapons. Arjuna could; he was trained. Ashwatthama could not recall his. He was not trained for withdrawal, only for release.
Vyasa allowed Ashwatthama to redirect it — but it must go somewhere.
Ashwatthama directed it at Uttara's womb — the pregnant wife of Abhimanyu, the last Pandava heir.
Krishna's Intervention
The child died in the womb. Krishna revived it — the child was Parikshit, who would survive and hear the Bhagavata Purana.
Ashwatthama's gem was cut from his forehead as punishment. He was cursed to wander for 3,000 years, bearing his wounds, touching no one.