A quick guide to unlock all four endings.

ENDING ONE:

>Send her away<

ENDING TWO:

Pick >No he didn't. He let her go< and refuse to answer the door at least twice

ENDING THREE:

There are multiple ways of unlocking this one. If on route for Ending Four, picking >Arthur dropped the subject< guarantees it.

ENDING FOUR:

Do not refuse to answer the door more than once.

Pick >Arthur stopped her, concerned< and >Would you like to?<