“The bulk of Agnus Dei, the fourth full-length from Italy's aggressive and eclectic the Secret, feels like whiplash: The band slingshots between corrosive noise rock and blast-and-burn grindcore, between sheets of feedback and whirlpools of rhythm without notice. "Post Mortem Nihil Est" sits just ahead of the album's halfway point, where it encapsulates all those impulses in a bit more than 150 sec”