Author and ultramarathon mother of four young children, Holly Zimmermann, shares condemning, yet humorous, comments and endeavors to take on some of the world’s most difficult and dangerous foot races in this inspiring book, Ultramarathon Mom. A grueling 257-kilometer ultramarathon through the Sahara Desert, written in a daily journal-style format, is the core of the story. She interspersed her tales between the adventures in the Sahara and other races always filled with interesting events. One time, two bombs went off before her eyes at the Boston Marathon.