Tracker Hatuba:
The Undead you need to fell are around the Cursed Village.
These include Guillotine's Ghost, Devil Bat, Atrox, Ghost of Guillotine, Behemoth Zombie, Bone Collector, Bone Animator, Bone Slayer, Bone Sweeper, Bone Grinder, Bone Scavenger, Bone Caster, Bone Puppeteer, Skull Collector, Skull Animator, Requiem Lord, Requiem Priest, Requiem Behemoth, Ghost of Betrayer, Ghost of Rebel Soldier, Ghost of Rebel Leader, Vampire Soldier, Vampire Magician, Vampire Adept, Vampire Warrior, Vampire Wizard, Vampire Magister, and the Vampire Warlord.
Also, the tombstones are located on the south side of the Cursed Village.