Okay, so the end you're missing is the Sad End. I guess if I add loads of blank space (ha), then you should only see the following hint if you expand the comment.
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Chris will need to have interacted positively with Beryl (think like heading towards the Good or True ends), but have been nihilistic himself (think "This is stupid, this isn't helping, who cares, it's all a waste" type choices).