Lethe alpha literally means "un-forgetfulness" or "un-concealment". Lethe, the river of forgetfulness, was one of the five rivers of the Greek underworld, the other four being Styx, Acheron (the river of sorrow), Cocytus (the river of lamentation) and Phlegethon (the river of fire). According to Statius, it bordered Elysium, the final resting place of the virtuous. Ovid wrote that the river flowed through the cave of Hypnos, god of sleep, where its murmuring would induce drowsiness. The shades of the dead were required to drink the waters of the Lethe in order to forget their earthly life. In the "Aeneid", Virgil
Watcher in the Water attack on the Fellowship, and rupture of the Moria Gate are already present in his initial writings. Since Tolkien never explicitly stated what the creature is, others have felt free to speculate on its identity and origins. In "A Tolkien Bestiary", David Day calls the Watcher a kraken; but implies differences between the kraken of Scandinavian folklore and the Watcher in the Water. Tolkien never called the Watcher a kraken nor described the presence of krakens in Middle-earth. In "The Complete Tolkien Companion", J. E. A. Tyler postulates the Watcher was a cold-drake: "...these dragons rely on their strength and