Solution to Atlantis Meta Meta

The Atlantis phase secretly has a "Four [Sea]horsemen of the Apocalypse" theme. Each of the four rounds is themed after one of Pestilence, War, Famine, and Death. On a story level, each round is associated with an Atlantean tower, troubled by one of these harbingers of the apocalypse.

The metas for these rounds (all of which are shell metas) play with the horseman concepts without explicitly declaring that as the theme. Specifically, the metas are about reversing the problem associated with each horseman.

The meta-answers are:

• Pestilence: ENCHANTED PANACEA
• War: TRIDENT OF HARMONY
• Famine: FAERIE CORNUCOPIA
• Death: IMMORTAL IRON KEEL

The metameta shell consists of a map of the Atlantean temple floor (which is tiled with letters), and a map detailing the paths of four magical ley lines.

To solve, first identify the canonical colors of the four horsemen:

• Pestilence: White
• War: Red
• Famine: Black
• Death: Pale yellow

Then fill out the ley lines map by writing out each meta answer along its associated color line:

    OR
   ECAN
  NCFEIU
 AHARIPTC
 NDEKELOR
TEIPANEEDI
AMATOLNOOM
CNMRRITNFR
 EAO  YHA

Treat this map as a word search. There may be some red herrings, but the filled-out map contains one word that is an antonym of each of the horsemen. The four key words are HEALTH, PEACE, PLENTY, and LIFE (for Pestilence, War, Famine, and Death).

    OR
   ECAN
  NCFEIU
 AHARIPTC
 NDEKELOR
TEIPANEEDI
AMATOLNOOM
CNMRRITNFR
 EAO  YHA

Now return to the floor map, looking only at the squares covered by one of the four hidden antonyms on the ley lines map. You get

    ..
   T...
  .OP...
 .OF.TA..
 ..L..L..
...ES.T...
.....TO...
......W...
 ...  ER.

Reading left to right and top to bottom, you get TOP OF TALLEST TOWER, and so you go to the top floor of the Green Building to start the Atlantis runaround!