BLACK SABBATH MK 2 kicked off their second album with Dio once again at the helm and Vinnie Appice on the skins to replace Bill Ward. (Ward had departed for personal reasons) With Dio now taking over complete control of all lyrics and a healthy contributor to the songs, it was becoming evident to Iommi and Butler that Dio was trying to steer the good ship SABBATH into Ronnie James Dio-waters! However to put all that aside this is once again another scorcher of an album. Perhaps the last truly great SABBATH-album until "Headless Cross".
"Turn Up The Night" and "Voodoo" just rock like bastards. The production is crisp and in your face. Geezer's bass thumps from the speakers beefing up the incredible guitar sound of Iommi. The epic "Sign Of The Southern Cross" is Dio at his best and taking from his "Stargazer"-days in RAINBOW. The riff in this song is a killer. Dio has rarely delivered a better vocal performance than on this track. The title track, "The Mob Rules" and "Country Girl" are true SABBATH-classics and were strong live favourites. "Slipping Away" is perhaps just a little too similar to Dio's solo work, "Holy Diver" was out not long after "Mob Rules", and "Falling Off The Edge Of The World" is a nod to the Ozzy-ballads of the past with its gentle opening which quickly develops into another hammer blow like riff from Iommi. "Over And Over" closes the album leaving us with thoughts of what the third SABBATH MK 2- album would sound like. The third would be a live album and a fitting testimony to the vocal delights of Dio.