Co-op
- After killing the boss Phalanx, the Maiden in Black will give you the Blue Eye Stone.
- With this stone, you can leave your mark on the ground. You must be in Soul Form to use it.
- This mark will appear in game for other players, who can examine it and use it to summon you to their game if they wish. They must be in Human Form to see and use the mark. This also applies to you if you want to invoke help.
- The player who left its mark will be summoned in the form of a Blue Phantom who must assist the summoner. To accomplish your mission, you have to beat the boss of the area without the host dying.
- Upon victory, the summoned player receives souls, recovers their Human Form as a bonus, and is returned to their own world.
- If the Blue Phantom or the Host is killed, you are automatically returned to your home world. You can also go back to your world with a specific item — the White Eye Stone — this is useful in case of bug or AFK host.
- This is a good way to turn your tendency towards white.
