There have not been any published books that have used Tolkien's elven language. There are numerous 'fan' written stories that have used Elvish and some attempts have been made to write entirely in elvish, but none have been made available commercially.
The book consists of the journey by Hobbits on their way to an Elven city named Rivendell in the hopes of protecting 'The Ring' ~ see related link below to additional information regarding the first book in the J.R.R. Tolkien trilogy of The Lord of the Rings .
'The World of the Rings: Language, Religion, and Adventure in Tolkien' is a book written by Jared Lobdell as a commentary on 'The Lord of the Rings' and the entire legendarium of J.R.R. Tolkien. .
I know the name, but, it is a secret. I am the author of The Forest Emerald, and I can not tell you. I will give you a hint though, it is three letters. -Silver Shadowslayer
The Silmarillian was edited and published by Tolkien's son, Christopher.
J.R Tolkien
JRR Tolkien is not in The Hobbit, he is the author of the book. He does a bit of narration in some places, a sort of aside. Tolkien is English and was born in South Africa.
J.R.R. Tolkien
John Ronald Reuel Tolkien, but his name is J. R. R. Tolkien on the book.
They did not want to tell the elven king why they were in the forest when he asked.
The Children of Húrin was edited by Christopher Tolkien into final format and published in 2007.
Tolkien's vast imagination.
J.R.R. Tolkien primarily wrote in the fantasy genre, with his most famous works being "The Hobbit" and "The Lord of the Rings" series. His writing often includes themes of heroism, friendship, and the battle between good and evil in a richly imagined world.