Gallery of Heaven

You'll start in a room that's identical to the previous one. This time, you'll see Icicle Eaters standing on glowing spots. Your goal here isn't to fight the ones on the glowing spots. Instead, you need to defeat the Icicle Eaters that are *not* standing on the glowing spots. If you do this correctly, a chest will pop up containing a Recovery Orb. If you mess up and attack the wrong enemies, the chest won't appear. Don't sweat it though, just leave the room and come back in to try again.

Once you've got that sorted, exit the room and head down the corridor to your right. This gallery looks pretty much like the Gallery of Air, so you should feel right at home. You'll encounter two Icicle Eaters in here; take them down.

After dealing with the Icicle Eaters, proceed down the next hall. You'll find a Sorbie guarding the way. Defeat it, and a chest will appear back in the room you just cleared.

Head back to that room and grab the Flintlock Pick from the chest. Now, backtrack to the intersection where you saw those glowing circles earlier.

From that intersection, take a left this time. Enter the room on your left and you'll find three monsters waiting for you. Eliminate all three of them.

Once all three monsters are defeated, a chest will appear containing an Oracle Cane. Grab it!

Finally, make your way back to the fork in the road, go straight ahead, and then head up the stairs to reach the next area.