Suppose Harry Potter and the Philosopher's Stone is the first book in the Harry Potter series by J.K. Rowling, published in 1997. It introduces the character of Harry Potter, a young wizard, as he begins his journey at Hogwarts School of Witchcraft and Wizardry.
Can we infer that "Harry Potter and the Philosopher's Stone is the last book in the series"? Yes, no, or maybe?