Water of Oblivion
Water that makes anyone who drinks it forget everything they know
First named in The Emerald City of Oz, ch. 26
It is the Water of Oblivion."
Mentioned in
The Emerald City of Oz (2 of 30 chapters)
The Magic of Oz (1 of 23 chapters)
Connections from others
Guph seeks Water of Oblivion 1 chapter
stated in The Emerald City of Oz, ch. 28