Very cool mood, the voice is pretty cool ๐
Also, there is a really strong Iron Lung vibe, here! I love it :D I would love to see more!
The ending comes a bit abruptly, I would have liked to be introduced to the "entity" before (like hearing more strange noises, seeing shadows in the distance, more "blips" on the sonar"). But hey, you can only do so much in a week, right? x)
Thanks for this nice experience! Great work :D