Although she'd been working in the accounting department for a dozen years, the last half of the century had seen that role shift to being one of "AI technician" rather than the illustrious "number cruncher" or "bean counter".

Mavis was damned good at what she did - her ability going far beyond her job requirements. They had no idea.

She actually played a key role in developing the AI which devised the MoPE - a fact she'd generally prefer to keep quiet.

When the QED cycle kicked in, you could find her personification sitting quietly with a satisfied and knowing grin on her face.

The routine nature of her position in accounting left her mind free to research all sorts of things, keeping her connected to the heart of matters while maintaining a low profile.

Of course there was this sweet fellow from IT who'd find any reason he could to visit, his crush apparent. Henry didn't know her skills, so she'd let him think he was being helpful - he was pleasant company, after all.