is the novel influence by any kind of allegories?
It does mention Christian allegories in it.
Harry Potter and the Deathly Hallows
 However, many have commented on Christian allegories that appear in "Deathly Hallows". For example, Harry dies and then comes back to life to save mankind, like Christ. 
review of novel harry potter and the deathly hallows "The Baltimore Sun" critic, Mary Carole McCauley, noted that the book was more serious than the previous novels in the series and had more straightforward prose. what genre does the book comes under? Fantasy novel. who is its author? J. K. Rowling
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Harry Potter and the Deathly Hallows [SEP] Christian allegories
The "Harry Potter" series has been criticised for supposedly supporting witchcraft and the occult. Before publication of "Deathly Hallows", Rowling refused to speak out about her religion, stating, "If I talk too freely, every reader, whether 10 or 60, will be able to guess what's coming in the books". However, many have commented on Christian allegories that appear in "Deathly Hallows". For example, Harry dies and then comes back to life to save mankind, like Christ. The location where this occurs is King's Cross. Harry also urges Voldemort to show remorse, to restore his shattered soul. Rowling also stated that "my belief and my struggling with religious belief ...