Rat Burrow

Rat Burrows are located in Graveyard and appear semi-randomly. There are only certain locations where they spawn, but whether a particular location will currently have a burrow visible is random. The locations can reset if no one is in Graveyard for a while. Give a burrow a Lo Shoen's Rat Bait to spawn DeathTail along with several Blood Curse Rats and Grave Rats. Note that the spawn isn't all at once, and if you run right after handing the bait, you can space out the spawn (DeathTail will chase you and they spawn next to wherever DeathTail is currently at).