La sombra del pasado (Las Hericornias, 4)

The journey is nearing its end... and the truth is darker than they imagine. Every hundred years, the kingdoms of Branevia send their heiresses to the temple of the goddess Aurora to seek her protection and make a wish. The heiresses cross the Swamp of Doom, where toxic water lilies and dangerous butterflies abound. This time, they will not have the protection of their unicorns...