EARLIER INSIDE THE DUNGEON...
Arnold woke up by sudden noises around him, but he was not alarming because he had ordered his summons to be on guard as they didn't need to sleep. Thanks to them, he slept like a log... on a log. Even though he had taken care of most of the monsters who lived in the forest, one couldn't get careless because of it hence, this was his precaution.
When he opened his eyes, sun was already up and shining brightly and his summons were waiting for him to get up so that they could continue to search the area to find the potential, 'boss' of the dungeon.
Although sun was already above their heads, barely a couple of hours had been passed since Arnold went to sleep. His eyes were heavy but he couldn't afford to rest any longer. he sent his summons in every direction and told them to report any 'peculiar' sighting while he went to look for hidden artifacts that would be helpful for him.