The Singer and Carver era covers Season 8 to Season 11, when Jeremy Carver and Robert Singer became co-showrunners following the departure of Sera Gamble. This era brings the show back to Heaven versus Hell roots in terms of story arc. Also, a key characteristic is that its seasonal arcs are more self-contained as opposed to the previous two eras. Whereas previous eras would transition to the next season as an intended goal or clear continuation of the preceding arc (i.e., all events leading to the Apocalypse, the opening of Purgatory and the use of its souls), this era often leads to the next season with unclear or surprise by-products of the previous conflict.