Considering that this room is quite out of your way, you might want to leave it behind. It is a large square room entered from the South with 11 Lava Lizards and 13 treasure chests. Oh, and there is a stream of lava between you and the treasure.
If you insist on taking out the lizards and getting the treasure, expect to take around 30 pts of damage each time you go through the lava, but don't worry; the treasure chests are not on top of lava squares, so taking the treasure does not inflict more damage on you unless it is trapped.
Nothing more of note.