Underground Maze (II)
The stone door was three meters tall and carved with a beautiful, mysterious relief sculpture. A square slot in the middle of the door was apparently an installation for opening it. Although the entire stone door looked ordinary and was mediocre at best—the knock of a hammer would effortlessly smash it to bits—Rhode could sense a strange aura coming from it. It was obvious that these fine relief sculptures weren't simply relief sculptures. Instead, they were powerful magical traps that would perhaps trigger if the method of inserting the key was wrong or if the door was forcefully opened.