The Two-headed Pterolycus I

Merlin followed Curator Heroult into the Fossil Museum. It was a completely different world within. With a gentle press, the surface of the wall revealed a tunnel entrance that directly headed underground.

This was an underground secret passage. To think that Curator Heroult who had come to Boulder City for merely over a decade had already built a basement without anyone's realization. 

The basement was rather dim and cold, but there was no odor of dust. It must be visited often. Merlin walked behind Curator Heroult for a moment and soon saw a stone door.

There were so many mechanisms here. It looked like this was an important place.

"Rumble."

After the stone door opened, it revealed the true appearance of the basement, which was very spacious. As soon as Merlin entered, he had detected the pungent smell of blood along with a composite of potions. It was an unpleasant odor, and he could not help wrinkling his nose.