Charlie and the Great Glass Elevator, by Roald Dahl

(1964: sequel to Charlie and the Chocolate Factory. Illustrated by Quentin Blake.)

From the inside flap:

"Last seen flying through the sky in a giant elevator in Charlie and the Chocolate Factory, Charlie Bucket's back for another adventure. When the giant elevator picks up speed, Charlie, Willy Wonka, and the gang are sent hurtling through space and time. Visitin the world's first space hotel, battling the Vermicious Knids, and saving the world are only a few stops along this remarkable, intergalactic joyride."

Review:

More whimsy, witty wordplay, weird-but-sound logic, and another wildly left-of-center journey for Charlie, Willy Wonka, and Charlie's complaining family -- this time in outer space, with forays into Minusland (where one goes if one becomes too young).

Worthwhile, race-paced sequel to Charlie and the Chocolate Factory. Check it out.