Toby Tyler; or, Ten Weeks with a Circus is a children's novel. It was written by 'James Otis' (James Otis Kaler). It was first published in parts (serialization) in the magazine "Harper's Young People" in 1877. It was then published as a book by Harper & Brothers in 1881. A sequel called "Mr. Stubb's Brother" was published in 1883.