Warthur
With Blue Oyster Cult in the doldrums, manager Sandy Pearlman convinced them to stay together for just one more album in order to record his magnum opus - Imaginos, a concept album based on a horror story concept by Pearlman. In principle, this would have been an excellent idea... if they'd done it as a followup to Secret Treaties, when they were in their prime. (As a matter of fact, Secret Treaties consisted of ancillary material surrounding the Imaginos legend, so that'd have been a neat way to follow it up.)
The fact is, however, that both the band and their production team had picked up some bad habits over the course of the 1980s, and the Blue Oyster Cult representation here is a shadow of their former selves. AORish, middle-of-the-road 80s rock cliche clutters up what should have been a fine prog-leaning concept album; just listen to the versions of Astronomy and Subhuman (retitled Blue Oyster Cult here) presented as part of this muddled story and compare them to the classic original renditions on Secret Treaties and you'll see.
On the whole, finally doing the Imaginos concept album wasn't a terrible idea, but it's a real shame the band couldn't have done it back before they'd lost the plot.