A full-color chapter book based on LEGO Friends, a buildable play world for girls! Andrea, Olivia, Mia, and Emma are planning the perfect birthday surprise for Stephanie: a party at the Heartlake City Pool. But with all their whispering and secret plans, Stephanie accidently feels left out. Worse, Lacy convinces Stephanie that the girls may be trying to unfriend her! Can Mia and the others pull off the best birthday bash ever? Or will their surprise party turn into a surprise disaster?