The Fathomless Mastery, is the third full length album by the Swedish death metal band Bloodbath. It is the first full length Bloodbath release to feature the new guitarist Per 'Sodomizer' Eriksson. It was released on October 6th and features 11 new tracks. Former Scar Symmetry vocalist Christian Älvestam did guest vocals on track 6, "Iesous." * Mikael Åkerfeldt – vocals * Anders Nyström – rhythm guitar * Per Eriksson – lead guitar * Jonas Renkse – bass * Martin Axenrot – drums