Even with Jimmy Page’s searing guitar solos, Robert Plant’s wailing vocals, and John Bonham and John Paul Jones’ driving rhythm section, one could reasonably argue that without the honorary fifth ...

It’s August 1968, and in a poky room beneath London’s Gerrard Street, Jimmy Page is rehearsing his new band. A 24-year-old guitar-for-hire who’d made uncredited appearances on epochal hits by The Who, ...