2018 release, the fifth full-length album from enigmatic Australian avant-garde death metal surrealists Portal. Ion is the long-awaited follow-up to 2013's Vexovoid. This is the band's most intense and experimental release to date, an album not for the faint of heart and/or mind. Portal's style is an unorthodox fusion of death metal with black metal. The band's hybrid musical style is characterized by heavily distorted guitar riffs, down-tuned rhythms, and vocals ranging from "menacing, echoing" sound effects to guttural grunts. Lead guitarist Horror Illogium has described Portal's intent as "to capture a cinematic horror scope". The band cites as inspiration for it's lyrical themes the entities mentioned in Lovecraft Mythos, such as Nyarlathotep, Yog-Sothoth, Azathoth, and Cthulhu.