Do monsters keep us sane? This month, volunteers from across the world will travel to Loch Ness to try to spot a monster. Some think they might just be on to something.
Nessie hunters start biggest chase in history
Camera shy: The first ever photo of Nessie, taken in 1934, was later proved to be a hoax. Glossary
Loch Ness - A long and narrow lake in Scotland. It is famous for the Loch Ness Monster, a huge creature that some believe lives in the lake.
Proof - Something that shows something else is true.
Ancient - Very old.
Sicily - The largest island in the Mediterranean. It is part of Italy.
Whirlpools - Rotating or swirling water which pulls objects in.