Luo'er clearly intended to hold off the rear. He let his team members climb aboard the Transport Plane one by one, leaving himself to be the last. The number of Exotic Insects gathered on the top of the tower was increasing. The wall was crawling with a dense population of Exotic Insects, all baring their fangs and claws at him.
Hu Daoke and Cheng Ziang tried to knock down a few, but their efforts were just a drop in the ocean. Worried they might accidentally hurt their own people, they dared not continue shooting recklessly.
After getting his team members onto the Transport Plane, Luo'er took a deep breath and pulled the pin of his Magic Crystal grenade. He glanced at the ground below him, and then tossed the grenade down the stairs.
Apart from the tower walls, the other parts of the tower were made of wood, so even a single hand grenade could set the whole tower ablaze.