In this spooky book from the nonfiction An Unsolved Mystery from History picture book series, tragedy strikes Salem, Massachusetts, in 1692 as the community is torn apart by accusations of witchcraft. When a group of girls came down with a horrible, mysterious bout of illness, they pointed the finger at people in their community they claimed were witches. Soon, the whole town was convinced they were in danger from supernatural forces. Today, we have details about the accusations, trials, and those who lost their lives, but the question remains: What caused the mass hysteria? Become a detective, study the clues, and see if you can help solve this chilling mystery from history!

In this spooky book from the nonfiction An Unsolved Mystery from History picture book series, set off on the high seas to a ghost ship left completely abandoned and adrift on the waves. The Mary Celeste was discovered adrift on the open sea by another ship in 1872—with no sign of captain or crew. What happened? Did the crew mutiny? Were they attacked by pirates? Caught in a storm? No one ever found out. Inside this book are the clues that were left behind and the theories of what people think happened aboard that ship. Become a detective, study the clues, and see if you can help solve this chilling mystery from history!

The clubhouse of the Inway Investigators is purchased by someone whose activities appear subversive considering the mysterious sounds emitting from the building and the formidable wall erected around it.