How to pronounce “caldron” in English

The books had names like "Cannibal Cousins," "Black Baghdad," "Voodoo Fire in Haiti," "A Puritan in Voodoo Land," "The White King of La Gonave,""Full of Children Bred for the Caldron," "Pins and Needles and Voodoo Dolls That Don't Exist," "Zombies Crawling out of the Graveto Attack People." They gave rise to the RKO movies, "Night of the Living Dead." And they essentially said to the American public