Watching the tapes, part 3

Tape eight is the two boys planning a trip into the woods, to see if any more symbols of the sort have showed up. Andrew thinks that they should pack some survival stuff, whereas Sam doesn't think they'll be in there that long. They agree to go during the day, and to pack some things in case they get lost.

Tape nine (?) is another unlabeled tape. It has the same exact "pulsating" effect as before. Whoever is holding the camera is in the woods (I'm guessing the ones that Sam and Andrew are going to) and is walking around very slowly. Same "weird floating effect" as before too. The person eventually stops at a tree. He (not sure of gender so I'll just say he until I figure out who is recording this) reaches toward the tree with a knife, and very slowly etches the same symbol that was on a tree before into the one he stopped at. The person seems to be wearing a black jacket of some sort with black gloves. The pulsing effect gets really strong here, there is some static, and then it cuts to outside Sam's house again. The tape ends here.

I didn't watch any more tapes today, I had some things to do. I'm...more than a little creeped out by tape nine, just because I have no idea what is going on in it. I thought tape seven was just a bit of weird glitched up footage, but with this I'm not sure.