Did you get the scroll that mentioned a holy idol and said, "Remember, it is the sixth plate, not the fourteenth!"?
One of these panels is distinguished by its proximity to a unique feature. Start counting from there.
Maybe this will help.
Counting from left to right starting from the plate closest to the panel on the wall, the sixth plate is the one just north of the stones in the center. Stepping on it will open the wall panel and reveal the Idol of the Snake.
© 2000 The Erathian Liberation Party