Following on from Fractured, which covered content about grieving, hope and a separated society, Under the Fragmented Sky rebuilds Lunatic Soul as we know it, with dark and haunting atmospheres coming to the forefront. Duda explains "Fractured is not a full picture of the latest Lunatic Soul recordings. These more classical pieces have been waiting for their own time which has now come. "Under the Fragmented Sky" will be both a supplement to "Fractured" and an artistically independent release with its own character and identity.
Under the Fragmented Sky was recorded during the Fractured sessions at Serakos Studio, Warsaw from June 16-17, and finalised December 2017 and February 2018. The final track "Untamed" sees a guest appearance on drums for Wawrzyniec Dramowicz (aka Vaaver), and the album was designed and illustrated by Polish artist Jarek Kubicki.