Charlie and the Great Glass Elevator

Roald Dahl's sequel to Charlie and the Chocolate Factory launches Charlie, Wonka, and the grandparents into orbit, pit them against shape-shifting alien Vermicious Knids, and then sends Grandma Georgina backward in time through a rejuvenation pill overdose. The imaginative energy is undeniable, and the satirical swipes at politicians land with Dahl's usual sharp wit. The problem is that none of it coheres the way the first book does — critical consensus is clear that this is the weaker novel by a meaningful distance, and it has never been adapted for film or stage. Modern readers have also flagged passages containing racially insensitive content, and the grandparents are treated with an unkindness that undercuts the family warmth of the original. Fans of Dahl can read it for completeness, but it is not essential.