What book is The Rings of Power based on?

RETURN OF THE KING

What book is The Rings of Power based on?

The Lord of the Rings: The Rings of Power - Wikipedia

Why the 'LotR: Rings of Power' isn't Based On a Book Tolkien Wrote - Bell of Lost Souls

Stories The Rings of Power Can Tell Based on the Rights They Own

The Power of the Ring: The Spiritual Vision Behind the Lord of the Rings and The Hobbit: 9780824549831: Caldecott, Stratford: Books

3 ways 'The Lord of the Rings: The Rings of Power' is different from J.R.R. Tolkien's books

What Books are Lord of the Rings: The Rings of Power Based on?

Rings of Power: Every Character From Lord of the Rings Show Explained, lord rings

RBmedia Prepare for The Lord of the Rings: The Rings of Power

3 ways 'The Lord of the Rings: The Rings of Power' is different from J.R.R. Tolkien's books