Cokal's first novel, "Mirabilis" is set in the fourteenth century in Villeneuve, France. Its protagonist is a wet nurse whose breasts provide an unending supply of milk. Reviewing the book for the "Gay & Lesbian Review Worldwide", Joy Parks commented, "Mirabilis is original, humorous, and fascinatingly bizarre, an enigmatic story wrapped in a gauze of feminine sensuality." In "The New York Times", Sudip Bose wrote, "Cokal's prose is vivid, and she is adept at scenes ... that recreate a distant and terrifying world."