man behind the trees

You're an ordinary eighth-grade student, strolling home after yet another unsurprising lesson. You suspect nothing and are simply walking home along a snowy road on a dark evening. Suddenly, you see a shadow in the distance looking at you, and you decide to go closer. When you approached, the shadow mysteriously disappeared, and you found yourself in a circle of trees. Deciding to leave, you began to walk back, trying to find your way back. You heard footsteps behind you, but turning around, you saw nothing. Then, you started walking again and realized you were lost. But suddenly, it felt like someone had sharply jabbed your neck with a syringe. Falling onto the snow, you saw a blurry silhouette, and unable to make it out, everything swam, and you began to lose consciousness.

I walked home after school completely tired because of the workload