The protagonist has evolved into a higher-ranking species, which means having new skills and better stats. As she skitters through the labyrinth with little competition, she goes a little too far and finds herself in the lower layers where vicious monsters wander in droves, running into serious trouble.
Magic isn't really useful until you 
can pull off something like this!
السّحر ليس مفيداً ما لم تفعلي شيئاً كهذا
Magie ist doch nutzlos,
wenn man nicht so was kann!
Magia só é útil se for assim!
Пока не освоишь хотя бы такое,
не может быть и речи о владении магией!