are there any prequels to this novel?
Yes, Harry Potter and the Half-Blood Prince.
Harry Potter and the Deathly Hallows – Part 2
 The novel chronicles the events directly following "Harry Potter and the Half-Blood Prince" (2005) and the final confrontation between the wizards Harry Potter and Lord Voldemort.
when did harry potter deathly hallows come out 21 July 2007. what kind of a work is it? It is a fantasy novel. who composed it? It was written by J. K. Rowling. what is the storyline? The novel chronicles the events directly following "Harry Potter and the Half-Blood Prince" and the final confrontation between the wizards Harry Potter and Lord Voldemort. are there videogames based on it? Yes, two action-adventure video games.
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Harry Potter and the Deathly Hallows – Part 2 [SEP] Introduction
"Part 2" grossed over $1.3 billion worldwide and became the third-highest-grossing film at the time, as well as the highest-grossing film of 2011. As of 2020, it is the 13th-highest-grossing film of all time, the highest-grossing film in the "Harry Potter" series, as well as in the Wizarding World franchise, and the ninth film to gross over $1 billion. It is also the highest-grossing film ever released by Warner Bros.