Ignore it.

Dismissing it as merely a creature of the wild that wouldn't be able to get through a locked door, and is even less capable of challenging you than a standard human, you ignore the stalker with a slight roll of your eyes. As if some monster of the forest is gonna scare you.

You turn your attention back to the door, playing with the lock for a few more seconds. It's rusty and stuck from age, but you eventually manage to loosen it up with enough ****. With a satisfying click, it pops open.

Standing up and giving one last look around the forest surrounding you, you step inside.