I read in a previous message that you had to turn both levers in these rooms in the underwater city to get to the room that contains the third tablet. I have one crystal key left, and have turned both levers, but the door to the secret room does not open. What am I doing wrong??? Please help!!!

PS Are the three tablets the only things that I need before going to face Cet in the pyramid???

HI
First there is three glowstones, one from the mermaid, second in a big room, western part off the map "I think that is" with a mermaid and 2 chest high above you, its a room with a
a high celling, the stone is one off the chests, as always before getting special items,
make sure the guy getting the stuff has enough room, special items has a tedency off
disisapeirng then dropped, the third, remember the room with six water tunnels, there you
cant swim becuase off steam, in one offf them you will find a cheast and third stone,

second, then pulling the two levers, the trick is to have the door therer you pulled the first lever open at same time then you pull the second lever.

third the secret alcove is to north, between the to levers...