Guide to Dungeon Creation

"Identify them, Van," Ian commanded while reaching for his blade. The creatures of darkness stared at them as one of them stepped forward. It looked different than the rest as it had blue tendrils of light coiling around its trunk like armor. 

"Ah, yes," Van rushed to place a monocle over his eye. He looked at the monsters who seemed confused to see humans. "It says they are shadow creatures. Their levels are between thirty-five and forty." 

"Thirty-five and forty?" Ian asked with a sigh of relief as he pulled his weapon. "I guess this will be easy work." 

The party leader stabbed the ground with his sword. At the same time, a giant shield appeared in front of him, rushing to bash the creatures and destroy them. Before it could hit them, the creatures dissolved into the ground and fled. 

"Chase them!" shouted Ian, but it was too late. The creatures disappeared without a trace, leaving the party confused and lost.