BeBe enjoys her comfortable life as a caterpillar, munching leaves and crawling wherever she pleases. But after waking up with wings and long legs, her world suddenly feels “strange.” She can no longer “crunch on her favorite milkweed or clover” and feels uncomfortable when “her big wings [follow] her everywhere.” The story uses BeBe’s transformation as a way to open a conversation for young readers about the difficulty of change—whether this comes in the form of growing up, sudden illness, or familial shifts. Inspired by the author’s real-life recovery after a seizure and brain surgery, Bebe’s metamorphosis shows how frightening change can be, but also how rewarding new experiences can follow. The prose flows easily, and lines like “From above, the world looked wider—and a little brighter” capture moments of hope as the adorable caterpillar grows to accept the unknown. Sir’s illustrations are warm and charming, especially those of BeBe in her two forms—they recall the style of The Very Hungry Caterpillar (1969), with grainy textures and bright colors. The sudden shift from white daytime backdrops to a dark nighttime scene interrupts the visual rhythm, but the overall atmosphere remains coherent and uplifting, and should prove a delight for young readers.