This EP was released only as limited signed CDs as she wanted to please the fans who had pledged for the project after its delay.

Deepest Roots featured all the singles released so far from the project ("Feral Hearts", "Blossom" and "Diamond Hard") as well as remixes, audio commentaries and the instrumental track Journey Through the Elven Kingdom.

Shadow Works is a relative return to Kerli's first album Love Is Dead and her EP Kerli, which has a gothic, deeply rock-inspired sound, however, the album features more electronic sounds, akin to her EP's Utopia and Deepest Roots.

Kerli described the album as “an exploration of (her) own shadow, it’s a collection of music designed to connect the listener to their own disowned parts and to honor their hidden self.

The vocal scapes that start, part and end the collection are designed to bring the listener into a meditative state so that Shadow Work can be performed.” [5] The first single "Savages" was released on 30 November 2018 along the announcement and cover of the album.