Quoted By:
It will be difficult, that much you can take as a surety. Dangerous too. Perhaps even impossible, considering that this is your father's artifice ... but to tell it true, the presence of this defense suggests that this is the most important part of the Construct - which means that in spite of the risks, you have all the more reason to try. But how to try, that is the question of the hour ... hmm. Well, before you spend any of your increasingly precious time on trying to come up with a way to win through and close the distance without getting stricken, it seems sensible to ascertain more about the 'trigger'; specifically to see if it activates on sound or movement. With the level of discernment that is at play here, you don't think that you are going to be able to knock the door without making noise - to isolate movement. However, it should be trivial to make noise immediately outside of the door without touching it - to isolate sound.
Of course, conducting this little test is trivial - but the prospect of getting stricken again is not. And who is to say that it is not 'triggered' by <span class="mu-i">both</span> sound and movement?
Just like that, whatever forward momentum you had boils away, and instead you are going around in circles, hemming and hawing over if you should actually even bother with these sort of tests, as if they fail - or succeed, depending on how you want to frame it - you are going to get yourself stricken again. Eventually you are able to work your way back to solid ground - though it takes you much longer than you would have liked - with a compromise. You will not needlessly push your luck or your safety with these tests. Trying to isolate sound as a 'trigger' should be safe enough though - considering that you are not being completely silent outside of the door already, you can already make an educated guess that sound is not the 'trigger'. Still, you want more than an educated guess, you want surety - or something much closer to it than what you have now.
With that settled, all that remains is to decide how to make the noise. Hitting the door is out, of course - and if you are keen on being keen, then you shouldn't be hitting anything, just in case the impact makes the door move. So, do you just ... talk to it? It seems silly, but - well, you shouldn't over think it. You draw yourself as close as you dare, close enough that even in the gloom that has blanketed the corridor after your 'stick toppled you are able to see the grain of the individual planks that compose the door, close enough to kiss it, then before you can lose what little remains of your nerve -
"Hey, you in there!"
Nothing. To be absolutely certain, you try again with a little more volume.
"Can you hear me?"
There is no response, spoken - or strickening. So it seems you have your answer, both to the question of the 'trigger', but also to if this is going to be impossible, or just difficult.