Ideas and suggestions for the title for book #2

Hi,

Has anyone got any suggestions for the title for book #2? The theme is Aztec Elements. The second word has to be ‘water’ and the first word needs to be an adjective. The current working title is ‘Bad Water’, but my friend John says it’s not a great idea to have the word ‘bad’ in the title. I’ve got to admit that his suggestion, ‘Dark Water’ works well, especially as one of the scenes takes place in a flooded cavern.

Thanks,
Philip