Ritsuka tells Merlin how he was easily defeated by the Mage King Solomon in the Fourth Singularity, London. Merlin points out that since Solomon is a Grand Caster, Ritsuka will need the power of the Final Grail to defeat him. The group is then summoned to Uruk's northern wall. Leonidas informs them that a fortress city beyond the wall, Niddur, has fallen silent and they must investigate to see if there are any survivors. That night, Ana wonders whether she should tell Ritsuka and Mash her true identity, but Merlin advises against it since she is their trump card against the Goddess of Demonic Beasts...