Hepatica4

 is a track in Xenosaga Episode III. It has not been released on any soundtrack or sound selection and not much is known about this track. It is a remix of hepatica (KOS-MOS).

It plays in the following cutscenes:
 * KOS-MOS reawakens after the party finds her beneath the CAT Testing Grounds.
 * Shion recognises a place in Rennes-le-Château as being from KOS-MOS's Subconscious Domain.
 * Shion learns that KOS-MOS's core was damaged after the fight with T-elos.
 * Shion and Allen discuss the prospect of changing the past on Old Miltia.
 * Shion speaks with Joachim Mizrahi on the Beach of Nothingness, and sees an image of Mary Magdalene.
 * Shion finds herself in a vision of Rennes-le-Château after passing out on Michtam.
 * Shion sees visions of Jesus Christ, chaos, Mary Magdalene, and Mary's maiden.