Original sentence: Austen biographer Claire Tomalin speculates that Austen may have begun this book, which is more explicitly comic than her other works and contains many literary allusions that her parents and siblings would have enjoyed, as a family entertainment-- a piece of lighthearted parody to be read aloud by the fireside
Edited sentence: Austen biographer Claire Tomalin speculates that Austen may have begun this book, which is more explicitly comic than her other works and contains many literary allusions that her parents and siblings would have enjoyed, as a family entertainment—a piece of lighthearted parody to be read aloud by the fireside