Junie B. Jones Has a Monster Under Her Bed is the eighth book in the Junie B. Jones series.
After hearing from a classmate at kindergarten that people have monsters under their beds, Junie B. Jones is afraid to go to sleep that night.
At class picture day, Paulie Allen Puffer tells Junie B. about ho his brother told him that monsters live under everyone's beds. Junie B. gets scared and accidentally ruins her class photo as a result. Her fears only get worse when Grace tells her that its possible a monster is under the bed, because they can turn themselves invisible.