the yellow key is in the room with the torch.
at the altars, pray and make an offering. the one misaligned can be moved by magic, but make an offering first, or you'll have to reload an earlier save.
the pump handle IS there.
to open the queen's room, break a decorative object. look behind the king's altar first.
now I'm stuck a bit further, I have attract gold, reveal (found two uses, each gets Dizzy a golden key, but nothing else), blessed mallet, shield, duplicate potion, bucket and an empty bottle (know how to use, but saving reveal spell for now), and some rat poison (used twice).
don't know what to do with the monkey, how to get to the queen's altar, how to get the treasure and the teleporter behind the wall in the section with the moving spike wall, and what's the use for a lever there. I don't think anything's happening when I use the button right of the monkey, either.