Unicorn Diaries #1: Bo's Magical New Friend by Rebecca Elliott

From Scholastic:   Bo Tinseltail loves going to Sparklegrove School with the other unicorns. Every unicorn has a magical power. Bo is a Wish Unicorn with the power to grant wishes. Bo has lots of friends, but one thing Bo wants more than anything is a best friend. When a new unicorn named Sunny Huckleberry pops into the forest, will Bo's big wish finally come true? And what will Sunny's Unicorn Power be? Discover this TWINKLE-TASTIC, full-color series from Rebecca Elliott, creator of the USA Today bestselling Owl Diaries series!