How does Bradbury foreshadow the end of the story in the veldt?

Bradbury foreshadows the end of the story in "The Veldt" by introducing the threatening nature of the nursery and the children's obsession with the veldt. The violent and lifelike qualities of the Virtual Reality nursery, coupled with the children's defiance towards their parents, hint at a darker outcome. Ultimately, the children's ability to manifest their fantasies in the nursery leads to a tragic and unexpected conclusion.