Hazel Grace Lancaster was born on September 29th 1996. She is age sixteen, is an only child and is the daughter to Mr. Lancaster and Mrs. Lancaster, friend of Isaac and girlfriend to Augustus Waters. Hazel finished high school early and has already begun pursuing a college education. She is diagnosed with Stage IV Thyroid cancer with metastasis forming in her lungs, but has managed to live with her disease owing to doses of an experimental drug called Phalanxifor (which doesn't really exist). Hazel constantly re-reads the book, An Imperial Affliction, by Peter Van Houten (not a real book). Because she is obsessed with his book, she wishes she could meet him and find out what happened after the end of AIA. When she was 13 she used her wish to go to Disney World feeling pressured into doing so because there was a high risk of her dying. When Augustus Waters contacted Peter's assistant (Lidewij) via E-mail, Hazel was amazed. Augustus then used his genie wish (Which he had saved) to go to Amsterdam, to meet Peter Van Houten along with Hazel whom he had invited. For medical reasons, Hazel's mother also joined the trip. The meeting with Peter took a negative turn. He states, upon their arrival, that he had actually not expected nor wished them to come, and only invited them rhetorically. He also refused to tell Hazel the answers that she wanted. Peter remarked: “You are a side effect of an evolutionary process that cares little for individual lives. You are a failed experiment in mutation.” Hazel replied with anger, and she and Augustus left. Hazel is described as having a pageboy haircut with dark brown hair and green eyes, she describes herself as having 'chipmunk cheeks' from steroidal treatment. She suffers from stage IV cancer and metastasis which has spread to her lungs. For this reason, Hazel must carry an oxygen tank (which she has named Philip) and nasal canulas wherever she goes. She also usually wears converse shoes. She dies one year after Augustus.