They don't need any strategy, just sheer numbers to overwhelm the enemy

At Tara Plain, Xiao Mu and Xiao Hui, along with their undead forces, arrived at the location of the lake based on the intelligence they had gathered.

"The real hobgoblin kingdom is hidden beneath this lake," Xiao Mu said gravely.

"These hobgoblins must be really dumb. This is the most desolate place I've ever seen, and there's a lake here? It's like they're begging to be discovered. What were these ugly hobgoblins thinking? It's an insult to our intelligence," Xiao Hui couldn't help but scoff.

"Let's see if we can get in. If not, we'll break through by force," Xiao Mu suggested, walking over to inspect the area. However, being clueless about magic, he couldn't discern anything.

Xiao Mu couldn't sense the barrier's presence at all and was shocked when he actually touched the lake. He had expected to encounter the barrier immediately, but it seemed that without knowledge of magic, he couldn't even detect it.