Answer the following question: Information:  - The Land of the Silver Apples is a fantasy novel for children , written by Nancy Farmer and published by Atheneum in 2007 . It is a sequel to The Sea of Trolls , second in a series of three ( as of 2013 ) known as the Sea of Trolls series . The title refers to the `` silver apples of the moon '' associated with the land of faerie in W. B. Yeats ' poem `` The Song of Wandering Angus '' . The book received the Emperor Norton Award ( 2007 ) .  - Nancy Farmer (born July 1941) is an American author of children's and young-adult books and science fiction. She has written three Newbery Honor Books and won the U.S. National Book Award for Young People's Literature for "The House of the Scorpion", published by Atheneum Books for Young Readers in 2002.  - The Sea of Trolls is a fantasy novel for children, written by American author Nancy Farmer and published by Atheneum in 2004. It inaugurated the unofficially titled Sea of Trolls series, which Farmer continued in 2007 and 2009. Plot summary. "The Sea of Trolls" is set in Anglo-Saxon England, Scandinavia, and the mythical realm of Jotunheim.  - Scandinavia is a historical and cultural region in Northern Europe characterized by a common ethnocultural North Germanic heritage and mutually intelligible North Germanic languages.    What is the relationship between 'the land of the silver apples' and 'atheneum books'?
Answer:
publisher