The task, therefore, fell to Christopher, whom Tolkien appointed as the executor of his literary estate.
But one volume was far from enough.
There are also versions written in poetic verse, and extracts from other tales.

Tolkien Society/Twitter
He threw himself straight intoThe Fall of Gondolin.
We didnt actually know about it until this time last year there was a potential other one.
Im sure hell be happy to have those books in his hand.

HarperCollins
This particular journey is completed.