Kibuishi Kazu. Amulet #4: The Last Council

Emily and her friends think they will receive the help they need in Cielis, but things do not go as planned. Streets that were once crowded with people now lie empty, and the remaining residents dare not show themselves out of fear.

When Emily is brought to the Academy, she must compete in a trial to become a member of the Council of Guardians, the most powerful group of Stone Keepers. As the number of contestants dwindles, a terrible secret gradually begins to unfold… if this secret remains hidden, Emily will realize that everything she fought for was in vain…