Xenem's greatest defense is the sheer uninhabitable nature of the volcanic ash and poisonous gas that surrounds the island. Of course, that hasn't deterred creatures from trying to storm its beaches in hopes to overthrow the Blood Lords and Emperor Xenem. Thus, the vampires rely on other defenses to protect their lands. Case in point: the Lantern Zombies of the Whistling Shores.
Creating a lantern zombie is a gruesome process. First, the necromancer must hollow out the zombie's skull, removing
all non-essential elements such as its jawbone, sinuses, and brain. Next, the nose, mouth, and ears are sewn together and painted over with a hardening resin. The eyes are also removed, but the eye sockets themselves are left in place, and often, widened. Then, the necromancer inserts a magical lantern. Not only does the lantern stop those who would dare enter Xenem uninvited dead in their tracks, but it also acts as a zone of truth which allows the Blood Lords to interrogate trespassers.
Undead Nature. The zombie does not require air, food, water, or sleep.