Need help in Eternal Darkness?? Try to find it here!! (I am)

[Jason1]

SPOILER FOR THOSE NOT THROUGH CHAPTER 9




well, after all this time, im finally stuck for good. Im the Peter kid during WW1 I think I have a doorknob, and there is a blue thing on the wall on the left side of the big church area. I tried using all the reveal invisible spells and the dispel magic spells but nothing effect it. I know there is a door there, because there was one back when you were in there as that other guy. I allready got the power back on, and all that good junk, but I have no Idea what to do next, ive been wondering around for 45 mins, and its getting a little boring...is there somewhere I use the doorknob? Or am I not using the spells right where that door is suppoused to be? Or something else prehaps?