"It was a dark and stormy night; Meg Murry, her small brother Charles Wallace, and her mother were in the kitchen for a midnight snack when they were upset by the arrival of a most disturbing stranger. 'Wild nights are my glory,' the unearthly stranger told them. 'I just got caught in a downdraft and blown off course. Let me sit down for a moment, and then I'll be on my way. Speaking of ways, by the way, there is such a thing as a tesseract.' A tesseract...

The fifteen-year-old Murry twins, Sandy and Dennys, are accidentally sent back to a strange Biblical time period, in which mythical beasts roam the desert and a man named Noah is building a boat in preparation for a great flood.