Talk:Skeletron/@comment-208.103.254.238-20110609022634

http://img541.imageshack.us/img541/9758/terrariamulron.png

When the old man disappears and doesn't respawn, or if skeletron disappears mid battle, you can run inside and make the heads spawn. If you take them outside and kill them all, your dungeon becomes accessible. I really don't recommend doing this without end game armour though, without the ivy whip to get out, and molten armour to keep you alive, and meteor shots to kill 4-10 skeletrons in one night, you will be hard pressed to succeed.