How is the eleventh treasure found

Hint 1 of 9:

The High Priestess has a clue

Hint 2 of 9:

The Sentry has another

Hint 3 of 9:

The Dream gives a third clue

Hint 4 of 9:

The Nightmare gives a fourth clue

Hint 5 of 9:

The name of the treasure is formed in the 5x5 block grid on the Map