While Alexander was away, William met Victoria who was left in Emberfall City to continue with the investigation. At this point, the whole investigation had become meaningless as there were no clues about the Shadow Seraph. Even the higher-ups of the military seem to have given up on the result of the investigation.
The only person through whom they could reach the Shadow Seraph was Chronos. But Chronons also had mysteriously disappeared or died at Seraphine's hand. No one knew for sure.
Both Alexander and Victoria have searched for Chronos around the whole City. Both of them have visited Chronos's home, and his school, and even questioned the City Lord about Chronos's location but they found nothing. As more time passed, they were forced to believe that Chronos had either died at Seraphine's hand or had left the Emberfall City after learning that they were coming here.