Harry Potter and the Chamber of Secrets is the story of the titular hero's second year attending Hogwarts School of Witchcraft and Wizardry. Amidst a series of mysterious attacks on the student body Harry must cope with the suspicions of his fellow students, the school's mysterious past, and the identity of the force behind the attacks. The story is an illustration of childhood friendship, the shadows of past sins, and the perils of false accusations in climates of paranoia.
Boasting the largest collection of book summaries, BookRags is the best option for titles you can't find elsewhere. They offer all of the basics (quotes, chapter summary, characters, historical context, literary criticism) but also walk through a few major topics that recur throughout the book, which can be particularly useful for essay writing.
The most popular website for book notes. SparkNotes was created by students for students, and their summaries are accessible and extremely well-written. Besides the usual plot overview, chapter summaries, and character analysis, SparkNotes differentiates itself with a section discussing themes, motifs, and symbols.