Talk:Ghost/@comment-67.242.12.34-20130817224535/@comment-5264386-20130818001157

Don't panic, there are still two options open to you: The first is to create the Cursed Greatsword of Artorias, which can attack the Ghosts and Banshees in New Londo, however, you won't be able to block their attacks.

The second is to go down to the Depths, and get Cursed by the Basilisks (those toad things). This means that you'll be able to attack and block the Ghosts, however, it means temporarily sacrificing half your HP. Once you've farmed enough Transient Curses (I'd recommend equipping the Covetous Gold Serpent Ring to boost your item discovery), you can go to Ingward and remove your Cursed status.

Hope this helps! :)