The world still needs heroes. Are you with us? Enter the first-ever original novel for Overwatch, the worldwide gaming sensation from Blizzard Entertainment! In the technologically advanced African city of Numbani, in the not-so-distant future, humans live in harmony with humanoid robots known as omnics. But when a terrorist tries to shatter that unity, a hero named Efi Oladele rises! Efi has been making robots since she was little-machines to better her community and improve people's lives. But after she witnesses Doomfist's catastrophic attack on the city's OR15 security bots, Efi feels the call to build something greater: a true guardian of Numbani.