<Tr> <Th> LC Class </Th> <Td> PZ7. B73759 Si 2001 </Td> </Tr> <Tr> <Th> Followed by </Th> <Td> The Second Summer of the Sisterhood </Td> </Tr> <P> The Sisterhood of the Traveling Pants is a bestselling young adult novel by Ann Brashares published in 2001 . It follows the adventures of four best friends--Lena Kaligaris, Tibby Rollins, Bridget Vreeland, and Carmen Lowell, who will be spending their first summer apart when a magical pair of jeans comes into their lives, turning their summer upside down . The book was adapted into a film of the same name in 2005 . Four sequels to the book have been published, The Second Summer of the Sisterhood; Girls in Pants: The Third Summer of the Sisterhood; Forever in Blue: The Fourth Summer of the Sisterhood; and Sisterhood Everlasting . </P> <P> In the first novel of the series, the reader is introduced to four high school students: Lena Kaligaris, Tibby Rollins, Bridget Vreeland, and Carmen Lowell . They have been best friends since birth (their mothers attended prenatal exercise classes together). The summer before their junior year of high school, Carmen finds a pair of old jeans that mysteriously fits each girl perfectly, despite their different sizes . This leads them to believe that the pants are magical . They share the "traveling pants" among themselves over the summer while they are separated . </P>

How many books in the sisterhood of the traveling pants
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