FTP name this book by Mary Shelley about a man who makes a monster.
This work's protagonist is deeply scarred after his family is wracked with scarlet fever, while another death in this work is erroneously justified by the discovery of a locket.  While writing four letters to his sister Margaret Walton Saville, Captain Robert Walton informs her about his quest to find (*) Hyperborea, and his experience meeting the titular character. The titular character is nursed for four months by his childhood friend, Henry Clerval.  That character, Victor, is pursuing his creation across the arctic at the beginning of the novel. FTP name this book by Mary Shelley about a man who makes a monster.
This work's protagonist is deeply scarred after his family is wracked with scarlet fever, while another death in this work is erroneously justified by the discovery of a locket.  
{Frankenstein}: or The Modern Prometheus