Kids on Bikes #4: Return of the Cave Creature

A year after their encounter at Saber-Tooth Cave, Dickey Newton and Plunger might be catching fleeting glimpses of the same horrifying entity. Dickey is skeptical, but Plunger wants to believe. Meanwhile, Chip Estrada has been convalescing in a Sacramento psychiatric facility. Can the kids uncover the truth? If so, can they handle it?