Some people answer a job advertisement but when they turn up for an interview they are drugged and taken to some island where they have to face their worst fears.

[[deleted user]]

I remember one persons fear was being buried alive and I think another persons was drowning, maybe fire. They were all selected for a reason but I've forgotten it. Not much to go on I know. Hopefully it jogs someone's memory.

[Lobstergirl, au gratin]

When did you read it? Or when was it published? Paper book, ebook, other? Is it set in some unknown fantasy land, or a real country/real island?

[Rachel]

Sounds a lot like Bright Young Things by Scarlett Thomas.

[Kris]

I hate job interviews like that...

[Krazykiwi]

Were there fairies involved? If so there's an Elle Casey series that has this as the plot of the first book. On my tablet so I can't make links or look it up for you sorry.