I got the heart of the witch but cant find the heart of the giant. can any1 help me out?

I think you had to pass up the heart of the giant to get to the heart of the witch.

Location spoiler...
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In the area past the force field requiring the four ward stones, there is a container (lava or whatever) with a door on each side. The door to the left leads to the fire prince and the door to the right leads to the imprisoned warrior girl. This area past the doors holds the witch's heart, while the container between the doors hold the giant's heart.

thanks m8 I found it now