In the middle of the night, the intense buzzing sounds of insect wings spread across the Figaro Gardens.
Diablo, Ishtar, and the other Skeletons, were sneakily moving towards the North using the darkness as cover. The Mosquitoes weren't able to detect them because their bodies didn't give off any heat, making them practically invisible in the former's eyes.
As the elite Skeleton party neared their destination, they noticed that the Monster Nest was mostly empty. The robed-man had ordered the Mosquitoes to look for the traces of the Skeletons, and capture their summoner.
Fortunately, Diablo and his team had been using plenty of the underground tunnels the Ants had made to reach the Northern Regions, which allowed them to bypass the Mosquitoes that were looking for them.