When “The Mandrake Project” was first announced in September, Dickinson said in a statement: “This album has been a very personal journey for me and I am extremely proud of it. Roy Z and I have been planning, writing and recording it for years, and I am very excited for people to finally hear it. I’m even more excited at the prospect of getting out on the road with this amazing band that we have put together, to be able to bring it to life. We’re planning to play as many shows as we can in as many places as possible, for as many people as we can! As for what ‘The Mandrake Project’ actually is… all will be revealed soon!”

In March 2022, Bruce told Consequence about his next solo album: “I’ve been working on it, on and off, since ‘Tyranny Of Souls’. But between lockdowns and albums and MAIDEN tours and everything else, I’m looking for a clear space to actually nail and say, ‘Okay, this is what it’s gonna be,’ and get Roy to put some backing tracks down. And then we can do it. So we’re at the point now where we’ve already got — I don’t know — anywhere between 50 and 70 percent of the material for the album, depend(ing) on what we pick, from things we’ve already got. And I think we’d like to tweak it a little bit.”

Back in December 2017, Dickinson said that his next solo LP would likely include a reworked version of “If Eternity Should Fail”, the opening track on IRON MAIDEN‘s 2015 disc “The Book Of Souls”. At the time, he said that he had about “half” of his seventh record already written and he also confirmed that “If Eternity Should Fail” was originally penned as a Dickinson solo track.

He told Finland’s Kaaos TV that the original plan was for his next solo record to be “a whole concept album, which was gonna be called ‘If Eternity Should Fail’. And ‘If Eternity Should Fail’ was the title track to my new solo album,” he said. “And a bit like (Dickinson‘s 1989 solo song) ‘Bring Your Daughter To The Slaughter’ (laughs), it got commandeered for IRON MAIDEN. So if I did do another solo album, which I think I will, I might just stick to my original plan and have that as the title track. I mean, I did write it — it was the first track that I wrote for it. So, yeah, I’d probably still include that song. But it would be… the feel would be slightly different — not very much, though — from the MAIDEN version.”

In 2015, Dickinson told France’s Hard Force magazine that “If Eternity Should Fail” ended up being used by IRON MAIDEN after bassist Steve Harris heard the demos that Bruce was working on for what was supposed to be his next solo album. “And (Steve) went, ‘That’s a really cool song. Can we use that? That’s gonna be the opening song on the album,'” he recalled. “And I went, ‘Yeah, okay.’ And he was already writing, I think… He was already thinking of ‘The Book Of Souls’ as being the title, so he told me about the Mayan thing. And I’m, like, ‘Yeah, that’s cool. Okay. Yeah, I see where you’re going.’ But in my case, that song was written as part of a story. So the spoken word at the end is the beginning of a story that goes through the whole album. And one of the characters is Dr. Necropolis; he’s the bad guy. And the good guy is Professor Lazarus; he raises people from the dead. So that introduces Necropolis in the spoken-word thing. And I asked Steve… I said, ‘Look. Okay. I get having the song…’ ‘Cause it opens up with, ‘Here is the soul of a man.’ ‘Yup. Get that. But what about the end?’ I said, ‘Will people understand what this is about? Because this is nothing to do with the Mayans or anything. This is to do with… I’d come up with a concept album that doesn’t happen.’ (Laughs) And he went, ‘No, no, no. It’s just talking about souls and everything, and it sounds great.’ I went, ‘Okay.’ (Laughs)”