Talk:Demon Altar/@comment-189.31.101.227-20110525033732/@comment-81.233.42.204-20110526002911

No you just make the items to summon a boss there(Eater of worlds:30 vile powder 15 rotten chunks and eye of cthulo:10 lens) then you just put the item on your hot bar and left click to summ the boss :)

PS.You need to summ eater of worlds on corruption orelse you will die :)