Python

"Your Majesty! Your Majesty! This isn't a funny joke — where are you?!" 

Conan was already gassing out after searching the entire lake for Abel but to no avail. He couldn't find Abel, making his heart thud in panic.

"Your Majesty!" he yelled his lungs out, looking around at the lake. "Your Majesty! I know you're sad that Lady Aries left you all alone here, but this is too much! Your Majesty!"

Conan yelled and yelled until his throat was hurting, making him snap his tongue in irritation. How could this happen? No matter how fast Abel was, he wouldn't be able to get out of the lake without Conan noticing. 

"Did he dig his grave under the lake?" he wondered, gazing down at the lake where he was standing. "He's been floating here — did he make it look like he was just floating here and then digging a grave when no one is looking?"