Teen Wolf, Season 5

[Liam and Mason are wandering around the nature preserve in search of the Nemeton when Liam suddenly stops, looking defeated, and brings up Hayden]

Liam:
I couldn't save her.

Mason:
No one could. I was standing right there. Melissa did everything medically possible--

Liam:
[interrupts him] --While I was trying to kill Scott.

Mason:
You can't take all the blame. I mean, there was like 800 extenuating circumstances. It was just the moon, then it was losing Hayden, and fear, and anger... And Theo took advantage of it.

Liam:
Or maybe it was just me.

Mason:
Liam, you're a werewolf. There was a full moon, a supermoon. And you can't let yourself...

[Mason suddenly has a dawning realization]

Liam:
What?

Mason:
The Nemeton's a beacon for supernatural creatures, right?

Liam:
Yeah...

Mason:
So, what if it takes a supernatural creature to find it?

Liam:
I am a supernatural creature, and I can't find anything.

Mason:
But you've been looking with your human eyes.