This happened to my friend a few years back. Back then we had a habit of going for a night walk by my school dorm. He didn't live very far so after walking me back he walked home through a newly built park connector that took about half an hour to get to his area. This was past midnight and I was chilling in my dorm room when he called and sounding really freaked out. He rambled that he's been walking for close to an hour and hasn't reached any of the landmarks that the signs along the path mentioned (the whole x meters until some road etc). The whole area was empty and even the houses lining the park were quiet and dark and there was no noise (crickets or animals or anything). After a while on the call he told me he finally exited into a road in a neighborhood he didn't recognize. It was still empty but there was a taxi at the side of the road. The car was running but, after peeking in, there was no one in it. He continued walking but after a bit the taxi suddenly slowly drove off. Well long story short he eventually ended at the main road. I didn't think he was making it up because he's not the sort to but didn't think much of it either. He went back to that area again (I forget why) and actually encountered something. I forget the details of what happened there but he managed to take a picture. What it looked like was a shadowed figure (human shaped silhouette) melting into the ground. It was really strange.