He was your best friend until something changed in him. After a strange encounter, you are wounded and are taken care of by a mysterious man dressed in all black. Even more strange encounters happen after that fateful day. It is a full story...

Wattpad has teamed up with National Geographic to wake the world up to the potential impact of single-use plastics. In 500 words or less, we're asking you to share a story-real or fiction-inspired by actual photos of this global issue.