Ok, that thing with Scp-049 & Scp-035 Was more of a shit post. From what I gathered from not only the SCP website but other recourses, the Plague Doctor and the Mask know each-other. And in an interview with the Mask, he joked about him and the Plague doctor being 'Lovers', so that's why I made that post. If you have any question, feel free at ask in the comments! ^^