Unexplained, Unsolved, Unsealed Mysteries of the World (Volume 6)

• Poison in the mailbox

For almost two decades, residents of a small town continued to receive life-threatening letters from an anonymous person claiming to know so much about them. The shocking thing: the writer of the letters knew enough about their lives to infuse just the right amount of fear in recipients of the letters. When a TV show decides to take on the case, they receive a warning letter, too.

• A Visitor from Hell

No one ever knew when he would arrive, but he always left the goriest scene imaginable whenever he visited. All the residents knew was that there was a figure roaming the streets in the dead of night wearing a dark suit and a slouched hat, armed with a bloody ax in search of the next family to wipe off.

• The Galaxy Tourist

A stepfather found a note taped to his bedroom door from his stepson. The letter revealed that its writer had been called to space for an intergalactic excursion. A later investigation also revealed that the young man had told friends that some extraterrestrial beings were coming to take him away in their ship on a particular date. He disappeared on the said date, and no one has seen him since then.

• Alone in Death

How one woman’s corpse remained discovered in her home for over two years is a mystery that may never be solved. How did she die? Why didn’t anyone notice her absence throughout those years? Over a decade later, it is all questions without answers.