Do parallel worlds exist? Searching for proof, Professors Rodger & Cassie Swift vanish. Kestrelle, a spirit girl claiming to know their fate, tells their son Braden he must brave a whitewater, tooth-sprouting river into a land where wise vultures predict the future and blue minds inhabit lava caves. Only two powers can help: Kestrelle's Blood Thorn and Braden's vine-painted guitar. (For All Ages)********************************************"Spirit Thorn, A Tale of Parallel Worlds," the important new novel by Zacharias O'Bryan, unifies spiritual ethics with both ecological mandates and the mind-bending cosmology of cutting edge physics. Written as a science-fiction/fantasy adventure, Spirit Thorn is capturing the hearts, hopes and tears of all Seekers — from the precocious ten-year-old to the questing adult.********************************************Reviews are welcomed. Thank you.