It reached the Top 5 in the UK Singles Chart on the back of its lead track, "It's a Mystery".

It was the band's first release to feature the new lineup of Willcox, Joel Bogen, Phil Spalding, Nigel Glockler and Adrian Lee.

(...) It was a joy to write these extra songs and also, because these EPs were standalone, it meant that I could explore lyrical avenues that perhaps I wouldn't be able to put onto an album".

They were also included in the album's 1999 CD re-issue as well as the 2005 compilation The Safari Singles Collection Part 2: 1981–1983.

It is listed at number 49 on the official top 50 best-selling singles of 1981[3] and was eventually certified silver in the UK.