Poppy is GREAT at being a best friend. She and her best, best friend Clementine spend EVERY DAY together making crafts, having adventures, and working on their bookmark business...Well, ALMOST every day. When Clementine spends an afternoon playing with someone new, Poppy fears she might be losing her best, best friend.

With some help from her dad, Poppy finds the words to share what's in her heart with Clementine. But Poppy may not be the only one with hurt feelings. Together, Poppy and Clementine learn they don't need to be afraid to talk about big feelings. And now with their friendship mended and stronger than ever, perhaps their dynamic duo has room to grow into a trio of best, best friends.