The context of the following conversation is Aubrey turned Sydney back from the door, because Aubrey knew about all the dangers on the other side.:
Aubrey says I really don't think you should step out of that door right now.
The friend responds Why, is their something dangerous on the other side.
Aubrey responds We dug a six foot hole so we could access the sewer pipes because they have a hole in them.
The friend responds well, I'm glad you told me before I almost died.