Board Thread:Help!/@comment-24398558-20141004003102

I just read that instead of Eye of Chtulu you're supposed to get a Vengeful Eye, but I'm trying to summon one via the summoning item (suspicious looking eye) on a hardmode world (world level 32), with my level 67 bunny, and it spawns a regular Eye of Chtulu boss. Same thing happened with the eater of worlds... I'm not sure how exactly am I supposed to summon the hardmode versions. 