The wizards of Grand Central Station - pampered Rhiow, alley Tom Urruah, and the kitten Arhu - are summoned to London, where an ancient Gate has turned into a timeslide, dragging innocents to or from other eras. There the cats discover that the malfunction is deliberate: The evil Lone One is warping time, manipulating an alternate universe to unleash nuclear horror that will spread across the dimensions.

Rhiow's team has to stop Armageddon. Aided by a human child named Arthur Conan Doyle, the wizards must save the life of Queen Victoria - every Queen Victoria, in every universe - then find the forgotten magic to rewrite history before the time warps reach the present. OR the cats who can save creation will have never existed. . .