Almost yearly, ancient ruins are declared to be clues to finding Atlantis, a huge island where an advanced civilization is said to have lived. However, we're not even sure if Atlantis existed at all. Atlantis lore stems from the writings of the famous Greek philosopher Plato of nearly 2,400 years ago. Some think Atlantis is an allegory, while others believe Plato's account is a historical record. Readers will find out what Plato reported about the civilization and where people are looking for it today. Fact boxes, sidebars, and maps will increase readers' curiosity about this compelling mystery.