In 1990, Howe Kraft was replaced by Wyatt Robertson, and Believer recorded its second album titled "Sanity Obscure", which is more technical than its predecessor. Believer continued its co-working with Scott Laird, and incorporated more symphonic elements on the song ”Dies Irae (Day of Wrath).” Scott Laird's sister Julianne Laird Hoge was featured as a soprano on the song. "Sanity Obscure" also features an anti-pollution song titled ”Nonpoint” (which the band nonpoint named themselves after) and an anti-drug song called ”Stop the Madness”, which was released as a single with the U2 cover ”Like a Song.” "Sanity Obscure" was first released by R.E.X. Records to Christian market and a year later by Roadrunner Records to wider audience. The album became more popular than Believer's first album, and after the release Believer toured with the English deathgrind band Bolt Thrower and the Canadian thrash metal band Sacrifice. Joined by bands Cynic and Pestilence on the label's roster, Roadrunner Records pushed a progressive metal/thrash campaign with the three bands called "The Breed Beyond".