<p>I like the spawn spawns under Mount Sternum, it's Sternum on multiple floors it's called the <a rel="nofollow" href="https://tibia.fandom.com/wiki/Mount_Sternum/Undead_Cave">Undead Cave</a>. It's filled with ghouls and skeletons so you can complete both of those bestiaries at once! Of course, there's other creatures. Free accounts can also enjoy this cave, it's where I finished my bestiary.</p>