 Open
the niche left of the gold-key door. |
 After
climbing up from below the palace, blow up the crack in the wall. |
 In the room
with the spining spears, the right wall opens up to a room. |
 Between the
spining spears, lower the console to reach the passage behind it. |
 At
the lava with the lifts, jump onto the border ledge and go arround behind
to reach a islet in the lava. |