Devil Sent the Rain by D.J. Butler

A trap set for the band goes from bad to worse as organist and resident sorcerer Adrian badly bungles his escape spell. Trapped inside Adrian's shadow, the band struggles to orient themselves and escape not only from their pursuing enemies, but from the darker manifestations of Adrian's soul.

And once they do get out from inside their own wizard's tortured mind, they'll still have to deal with the fallen angels that trapped them in the first place.

Devil Sent the Rain is the fourth installment of Rock Band Fights Evil, a pulp fiction serial by D.J. Butler.