I had the oddest invasion earlier. A red phantom invaded in Dark Anor Londo, I was in the O&S room taking out the larger of the two aggro-NPCs. I ran to the doorway from one side and saw the invader run in, but completely ignore me (may have not seen me, but I'm pretty sure I was in his field of vision) and run towards the NPC. I carried on running out down to the lift and was not followed. A blue invader pops in near the lever - despite my arrows telling him where I was, he runs into the main hall. I see nothing of them for a good 5 minutes, so I go down to the painted room, take out all the painted guardians thinking the lifebars would alert them to where I was - nothing.
So I go back up to the O&S room and these two phantoms are running around the NPC - did they think it was me?! BOTH of them?! I run back out and down the stairs outside, a second blue phantom invades - Again I never see him, another few minutes go by, I mess around with the lift hoping to get their attention, it doesn't - I go back up the steps, FINALLY all 3 are running down the steps after me - Benny Hill style. Well, it didn't look like it was going to be an honourable duel, so I quit - 3vs1 no point and dying in Anor Londo is annoying since you have to start from the first bonfire again.
Really odd though, I can't believe all 3 invaders thought the NPC was a human player?
I'm posting here just to vent for a momnet. I am stuck at those two knight archers in Anor Lando. I got to them once last night and four or five times tonight. I've made it face to face with the knight on the right three times. I've made it to the end of the flying buttress several times but am usually hit by an arrow and knocked off the ledge. I've even worked my way back to Firelink Shrine to buy poison arrows, and tried to poison them, but I don't have a longbow and don't know where to get one. I bought the push miracle hoping if I get close enough I can knock the knight off the ledge, but haven't bee able to do it yet. This portion of the game is just so frustrating. I've looked at a walkthrough and know as soon as I get past this guy I am home free. Sorry, but I just have to vent about these two knights. If that ledge were a hair wider than it would be so much easier.
This is a hurdle all first time DS players face, it is frustrating.
If you have a stable shield like the Eagle shield you can stand your ground or push the one on the right off. Or parry/repost I guess. Stamina regen items help here too.
Or you can use posion arrows, there's a long bow in Darkroot Basin I think - I like bows in this game, so this is my method, any time I can go longrange, I will. If you have the ring of fog, it's even easier as you can go up to the middle ledge and fire from there. Head shots mean they can't even recover between hits, so it doesn't even need to be poison arrows. This is how I do it now, I used to stand at the bottom and get the trajectory for 3 poison shots then wait it out/deal with invaders.