In Cauda Venenum (Latin for "Poison in the tail") is the thirteenth studio album by Swedish progressive metal band Opeth, released on 27 September 2019 through Moderbolaget and Nuclear Blast.[4] It was released in two versions: a Swedish-language version and an English-language version.[5] The band toured in support of the album throughout 2019 and into 2020.[6] At 67 minutes and 57 seconds, it is the band's longest studio album.