The Book of Us: The Demon
| Group | 데이식스 |
|---|---|
| Release | 2020-05-11 |
| Type | mini |
| Title Track | Zombie |
The Book of Us: The Demon is a mini-album by the K-pop group Day6, released on May 11, 2020. The release is led by its title track "Zombie". Day6 debuted on September 7, 2015 under JYP Entertainment.