The Zoo With The Empty Cage

The Zoo With The Empty Cage (On The Bus, On The Case) by Steve Brezenoff
2009
★★✰✰✰
So I finished the fourth and final book of the Field Trip Mysteries compilation, On The Bus, On The Case.  This story, still almost the same as its predecessors, continued to be too similar.  Perhaps, if these stories are read at different times, instead of back-to-back-to-back, then there wouldn't be as mush repetition.