Lock Up the Wolves

Rod Simpkins from the Hollywood bands Riken and Jungle Alley also filled in on bass for several tour dates in 1990.

[5] Vinny Appice confirms that he was there until the album was written and left because he felt "This is not Dio" with "all these young guys in the band".

The song "Evil on Queen Street" takes its title from a deli in Toronto which had a sandwich with that name—per Dio on Much Music in 1990.

Guitarist Rowan Robertson stated that two more songs were written and demoed for the album but left off at the decision of their manager Wendy Dio: "Hell Wouldn't Take Her" and "The River Between Us".

Los Angeles Times stated in September 1990 that the album "died a quick death on the charts" and "half-empty houses are not uncommon" on the ongoing tour.