A Neat Trick

Sunny was troubled. 

Not only because he was facing Revel the Lightslayer and two Reflections, separated from the rest of the group and having no clue how Nephis was doing, but also because the familiar voice in his head was silent. 

[Cassie?]

There was no answer. 

Either the Song sisters had a way to isolate those who entered the Citadel from the outside world — be it because of the Citadel itself, a mysterious facet of the Queen's Domain, or some other means — or something else was happening on the surface, not allowing Cassie to split her attention. 

In any case, at that moment, Sunny realized that he had grown both accustomed and reliant on having the blind seer be his invisible companion. 

Her silence made him feel uneasy. 

But there was no time to dwell on that…

Because Revel was already attacking.