To every underground, there is the underground to the underground. And beneath Chicago's much-ballyhooed metal underground, where tastemakers fear to tread and the deepest vault opens to reveal vast sunless subterranean sea, Arriver reigns supreme. Since 2004 Arriver has periodically drilled to the surface to upset convention even as it is formed, and to rock the asses of the unsuspecting and the converted alike. As they return to the Hideout exactly one year after the release show for their historical-epic LP Tsushima, Arriver strays ever further from the reservation, seeking the impossible nexus of Hemispheres-era Rush and crust punk where the art-death of Obscura-era Gorguts and Zeni Geva's primal thud stay up all night playing Risk with Circle's poly-motorik freakshow.