Understanding the Sisterhood Series Structure
The Second Summer Of The Sisterhood is the third book in Ann M. Martin's popular series following four teenage girls. It came out in 2003, a few years after the original novel that started everything. The premise stays the same across the books: a pair of shorts gets passed around between four friends during the summer, and each one experiences something meaningful while wearing them. This particular volume picks up after the events of the second book and continues tracking Briony, Tori, Carmen, and Lena as they navigate their respective summers. What makes this entry different from a lot of middle-grade fiction of that era is how Martin splits the narrative into distinct sections for each character rather than keeping them all together in one continuous storyline. You follow one girl through her summer arc, then switch to another. It is a structural choice that lets each character get enough page time to feel developed without the book becoming unwieldy. The shorts act as a thematic through-line rather than a plot device that drives everything forward. I have recommended this book to readers before and gotten pushback from people who expected more drama or higher stakes. The conflicts here are fairly low-key by design. One character deals with family financial stress. Another works at a beach job and confronts her own boundaries around responsibility and independence. A third navigates a complicated friendship with an older neighbor. The fourth deals with cultural expectations around career choices. None of these are earth-shattering in a thriller sense. They are the kinds of problems a fourteen-year-old actually faces when nobody is around to solve them for her.
If you are looking to find the text, the most reliable source is your local library system or a used book seller on AbeBooks or ThriftBooks. New copies run anywhere from fifteen to twenty-five dollars depending on the edition. The hardcover first edition from Scholastic tends to cost more, sometimes forty or fifty for a clean copy on eBay, but the mass-market paperback is usually adequate. There are no official free digital versions that I know of, since Scholastic still holds the copyright and has not released it into the public domain. Be careful with sites claiming to offer free downloads of the full text. Most of them are distributing pirated copies or embed malware in the PDFs. One edge case worth mentioning: some readers report that the ending feels rushed compared to the earlier books. Martin wraps up Carmen's storyline in roughly two chapters after devoting significant space to setting up the conflict. I ran into this with a reader group last year, and the workaround was to reread the third chapter of that section more carefully. The emotional resolution is actually seeded earlier in the book, but it gets compressed toward the end. If you slow down on those middle chapters, the payoff lands better.
Reading Order and Series Context
You do not strictly need to read the first two books before this one, but you will miss a lot of the context. The shorts themselves carry history from the previous volumes, and several running jokes between the characters reference earlier events. The character dynamics shift slightly between books too. Lena and Tori mature noticeably from book one to book three. If you start here, you will find yourself flipping back to clarify relationships rather than getting anything useful from it. A few things people get wrong about this book. First, the idea that it is just a summer read for kids. The themes around class differences, parental expectations, and identity are pretty nuanced. The scene where Carmen negotiates with her mother about college prep versus art school is one of the more honest depictions of that dynamic I have seen in YA from this period. Second, people assume the shorts are magical. They are not. They are simply a shared object that gives each girl a reason to reflect on her situation. That literal reading misses what Martin is actually doing with the symbol. The series has twelve books in total if you count the later additions. This is book three. Some fans argue the quality dips significantly after book six, and honestly, they are not wrong. The plots get more contrived, the conflicts less grounded. But book three sits in the sweet spot where the writing is still tight and the character voices are distinct. Each girl sounds like a different person, which is harder to pull off than most writers let on.
Get the Full Details

If you want to track down a physical copy, check your library's catalog first under the author's name. Otherwise, the ISBN for the standard paperback is 0590443198. Amazon and Barnes & Noble both list it, though availability varies by region. Used market prices tend to be reasonable unless you are chasing a specific first edition, in which case budget accordingly.