Most grateful thanks, as always, to test-solvers Lance Nathan, Ian Tullis, Trip Payne and Eric Berlin for proofing, testing, and making countless perceptive and useful comments on this extravaganza. These puzzles were much improved because of each of them.
When you have the overall solution, for a slot on the Leaderboard. If a team, please include everyone's name and/or nom as desired.
Any FAQs or errata will appear here, so check back if something seems to be amiss.
THE WATERS OF LIFE AND DEATH -- The second clue in 11 should have a "(2 wds.)" tag. Thanks Nathan Curtis!
THE THREE HORSEMEN -- The final clue should begin NPEJANRATIVE.... Thanks Boston solvers!