Sister and I saw something outside my house

[lolliebug]

Sorry if this is typed weird I'm doing this on my phone.

So my sister and I have both seen the same thing at different times outside my home at the exact same spot. It shows itself as a crouched humanoid type form that's sort of dark and in the shadows. We never see its face or eyes. It is there one second then suddenly its gone and like it was never there. It looks solid and the edges are not blurry at all. We also both got the impression that it was male and that it was possibly powerful. I know the powerful part sounds weird but it almost radiated off of it/him.

I have seen it multiple times for months but never said anything about it. My sister moved in with me about 3 weeks ago and saw it tonight and told me because she was freaked out by it. I thought I was just seeing things, though I should know better, but I was still shocked when my sister told me what she saw and felt and it was exactly the same as my experiences.

We have no idea what it might be, please help us figure this out.