Hamon's Culvert was a semicircular passageway with waterways on either side. Soccer ball sized holes lined the walls from which water continuously flowed. One of the holes, however, caused Kang Oh's Hyper Intuition to activate. 

"This is it." Kang Oh pointed at one of the holes. It appeared no different from any of the other ones.

"I see."

Sephiro and Eder nodded their heads. Because they'd spent so much time with Kang Oh, they knew that his Hyper Intuition was the real deal. He was either inherently talented, or he had a skill that allowed him to find secrets easily! 

"Is there something inside of the hole?" Sephiro asked.

"We'll see if we put something in there." Kang Oh put his hand inside.

"Please be careful. There might be a Winged Eel or a landmine inside," Eder said concernedly.

"Yeah," Kang Oh replied absentmindedly. 

Eder had worried over nothing. There weren't any Winged Eels or landmines inside.

Instead...

'This is...!' 

His palm felt a familiar shape. 

'It's like the faucet that we used when we were still living in that half-basement...