Beware of the spirit that guards the book in the cave.

After fending off an ambush by Senka operatives, Nerissa and her Ohanzee companions seek refuge in the mountain province of Rhea. With the drawbridges raised and the borders secure, they have left the Senka behind for now, but they may have traded one perilous situation for another. Although the third book is in Rhea, it has been hidden deep within an abandoned mine where it is protected by a cunning trap. Retrieving the book means facing both natural and supernatural threats, and Nerissa will learn that crystals hold power far greater than she ever imagined. Meanwhile, Desta, daughter of the renowned seer Shea, reveals that she has begun to have prophetic dreams of her own—and she is not the only member of the group with an awakening talent.

Reflection: Thorn of the White Rose is Book 3 of 4 in the Records of the Ohanzee series, which is written in a serialized style with a story line that flows continuously between books.