Exiled to Earth by her mysterious superiors, Iris has been amusing herself and Panda by working for MIAOW, the Ministry for Incursions and Other Wonders.
When a certain Professor Ramsbottom and his lovely assistant Audrey unearth a weird vehicle under a London railway station, Ms Wildthyme and her art critic chum are on the scene pretty sharpish. Among anachronistic skulls and crockery they discover the still-living forms of utterly perplexing, alien creatures.
And, before you can say 'Jabberwocky' Iris and her friends are on a mind-boggling voyage into a groovy Wonderland deep, deep beneath the Earth's crust....