Complex sentence: The original four and June Robbins trekked to South America to investigate young men with old Nazi tattoos, ancient alien cults, Zarpa the lake monster, a castle in the desert, a robotic dog, and a bomb in a piano crate.
Split into simpler sentences: The original four and June Robbins trekked to South America to investigate Zarpa the lake monster. While on the case they encounter young men with old Nazi tattoos, ancient alien cults, a castle in the desert, a robotic dog, and a bomb in a piano crate.