<P> The series is loosely divided into four arcs , chronicling the introduction and reveal of each `` A '' . Set in the suburbs of Philadelphia The series follows the lives of four teenage girls nicknamed the Pretty little Liars or simply the Liars , whose clique falls apart after the disappearance of their Queen bee leader , `` Alison DiLaurentis '' . Three years after her disappearance , the girls begin receiving threatening messages from an anonymous character named `` A , '' who threatens to expose their secrets , including long - hidden ones they thought only Alison knew . Shortly after the messages begin , Alison 's body is discovered buried in her yard . The books progress with the four girls trying to figure out the identity of `` A '' and facing many dangerous obstacles and twists as they do so . </P>
<P> The series is loosely divided into four arcs , chronicling the introduction and reveal of each `` A '' . Set in the suburbs of Philadelphia The series follows the lives of four teenage girls nicknamed the Pretty little Liars or simply the Liars , whose clique falls apart after the disappearance of their Queen bee leader , `` Alison DiLaurentis '' . Three years after her disappearance , the girls begin receiving threatening messages from an anonymous character named `` A , '' who threatens to expose their secrets , including long - hidden ones they thought only Alison knew . Shortly after the messages begin , Alison 's body is discovered buried in her yard . The books progress with the four girls trying to figure out the identity of `` A '' and facing many dangerous obstacles and twists as they do so . </P>
pretty little liars in the books who is a
pretty little liars in the books who is a
anonymous character
anonymous character