Invasion of the Boy Snatchers, by Lisi Harrison

The clique is back, in the fourth novel of Lisi Harrison's Clique series: Invasion of the Boy Snatchers.
Alicia Rivera's Spainish cousin, Nina, is visiting, and the clique's leader, Massie, absolutely despises her. Nina starts flirting with all of the boys from Briarwood Academy, including Massie's crush! Nina has got to go. Massie, Kristen, Dylan, and the newly accepted Claire will get Nina sent home somehow, but will Alicia choose the clique over her own family?... You'll have to read to find out!!

First three books in the series:

1. The Clique
2. Best Friends for Never
3. Revenge of thr Wannabes

~Go to lisiharrison.net to find out some cool stuff about the author!~