That Which Vanishes is the 11th chapter of Fairy Tail Zerø, a prequel to Hiro Mashima's Fairy Tail. After Yuri wakes up, he rushes off to find Mavis after listening to Warrod and Precht's explanation of what happened to her. He discovers her standing next to the lake, talks to her and apologises. He declares that his new dream is to protect and believe in her until the very end. He also admits that he and the others cannot see or hear Zera.