Think Again, Robyn (Formac First Novels)

Robyn befriends her unpopular classmate Shelly even though they have very different interests—Shelly likes dolls! But when Shelly's dad wins tickets to the big hockey game, Shelly suddenly becomes the most popular girl in school. What will their classmates think if Shelly doesn't actually get to attend the game? Will Robyn lie to protect her friend's newfound popularity?