My buddy Bigjosh and I got stuck on Charred Court today by rescuing all of the sprites with a dry fountain. You need at least 2 players to do this:

Step 1: Knight1 holds a sprite while in the fountain and does not drop it.
Step 2: Knight2 drops a sprite while standing on/near Knight1
This will force the sprite out of hands of Knight1 but does not count towards a rescue.
Step 3: repeat Steps 1 and 2 until all sprites are "Rescued"

You WILL get stuck on Charred Court if properly done.