The Watcher in the Water is a gigantic squid-like creature that appears in The Fellowship of the Ring, the first book of JRR Tolkien's trilogy The Lord of the Rings. The Watcher in the Water rises out of the lake directly outside the entrance to Moria and attempts to pull Frodo into the water and (presumably) eat him. Many people believe the Watcher in the Water is heavily influenced by the Kraken.
Boutros: What if the Watcher in the Water had eaten Frodo?
Rumpelstiltskin: I guess we would have lost the War.
Get the watcher in the water mug.