If Eternity Should Fail - Live at Qudos Bank Arena, Sydney, Australia - 6th May 2016

This Bruce Dickinson penned song was originally intended for the Iron Maiden frontman's solo album before being co-opted for The Book of Souls. He told Kerrang!: "The demo was done and the band just copied what Roy (Z-long time Bruce collaborator) and I did in his bedroom In fact, the little keyboard bit in the beginning is me in Roy's bedroom."

The song was recorded in Drop D tuning, which is a first for Iron Maiden.