Invade and defeat Magnus the Beast Claw

To complete this square you need to defeat Magnus, the Beast Claw, the NPC you can invade at the Writheblood Ruins. Wait until the "ENEMY DEFEATED" or equivalent screen appears to mark the square.

To invade Magnus, you need to acquire Festering Bloody Fingers from a merchant (only a few sell them) or from Varre – killing him or doing his quest. If you run out of fingers, you cannot invade Magnus until you obtain more. This does not count as a NPC invader (you are the invader).

DANGER

Magnus does not count as a boss.