Jennifer Donnelly said this quote

“ Serafina, Ava, Ling, and Becca swam inside. Neela followed them, but at the very last second, shield. “I can’t,” she said. “Once I go in, there’s no way out again. This is real. You’re real. All this time, a part of me was hoping you were only a dream.”The witch cocked her head. “Only a dream?” she said mockingly. “Long ago, a great mage dreamed of stealing the gods’ powers. Abbadon was born of that dream. Atlantis died because of it. Now, because of a new dreamer, all the waters of the world may fall. There is nothing more real than a dream.” She nodded at the waters behind Neela. Silt was rising in the distance, a great deal of it. “The merman Traho knows this. He’s coming. If you do not believe me, perhaps he can convince you. ”