Francesca Cavallo is an award-winning, New York Times best-selling author, entrepreneur and activist. She co-created the Good Night Stories for Rebel Girls book series and podcast and was the recipient of the Publisher's Weekly StarWatch Award in 2018. In 2019, she parted ways with Rebel Girls, which she had co-founded, to start Undercats, Inc. Francesca's work has been translated into more than 50 languages, and her books have sold more than 5 million copies worldwide.

From Francesca Cavallo, author of the NY Times best seller Good Night Stories for Rebel Girls. On Guard! tells the story of Beatrice Vio, who has been a fencer since she was 5 years old. When she was 11, she contracted meningitis and had to have her forearms and legs amputated. At first, no one believed it would be possible for her to go back to fencing, but she found a way. Not only did she win several world championships, but she also became a pop icon. Illustrated by Pakistani illustrator Maliha Abidi, this is the third book in the non-fiction Paralympians series, a picture book series telling the stories of 4 champions who do things their own way and are reinventing sport.