The Last Battle by C. S. Lewis
This novel is a fantasy for children written by C.S.Lewis. Published in 1956, it is the final tome of the Chronicles of Narnia. Plunge in!
The Last Battle is set about entirely in the Narnia environment. The English kids enter only in the middle of the narrative. The novel is placed some 200 Narnian years after The Silver Chair and around 2500 years after the creation of the world narrated in The Magician’s Nephew.
A fake Aslan is set up in the north-western Borderlands. A conflict between genuine and false Narnians emerges as a result of that, between Narnia and Calormen, whose people worship Tash.
This story ends with the termination of the world by Aslan, after a “last battle” that is mostly lost.
Lewis (read his mini-bio) and The Last Battle obtained the annual Carnegie Medal from the Library Association, acknowledging the year’s best children’s book by a British citizen.