Long Chen had activated his shadow transformation martial skill to hide himself in the darkness as he got near Lang Jing's house. He didn't want to be caught by the old man if he was here. Although he hoped that he wouldn't be here, he didn't take the risk of going in without precautions.
As Long Chen reached near his destination, he landed on the ground and put the sword back.
He spread out his Divine Sense all around him to see if the old man was here or not.
Long Chen could see Lang Jing inside his room. He seemed to be cultivating.
Other than Lang Jing, Long Chen couldn't see anyone else.
'Looks like I was right. That man isn't here,' Long Chen thought.
He sent a message to the Snake Monarch and told him to be ready. He also told the Snake Monarch not to make any noise or sound when he was called out.
He just wanted the Snake Monarch to hold Lang Jing in his place so that nothing could go wrong, without alerting him beforehand.