House of Horrors

You arrive there quickly because it’s not far from your house. You walk up to the address on your invitation and stop to look around. The outside of the house looks big but the flowers are mostly dried up or dead. A high fence and giant gates surround the house. There is a bell and speaker next to the gate.

It’s completely dark outside but through the windows you can see inside lights are on in some of the rooms.

What do you do?