Two stars known for their fan-favorite characters, Neville Longbottom from Harry Potter and Eleven from Stranger Things, posted a photo to Instagram that only raises a thousand questions.

A lot of people ask what my tattoo means. Now you know. @milliebobby_brown #XI #Eleven

A photo posted by Matthew Lewis (@mattdavelewis) on

Why are they together? Are Matthew Lewis and Millie Bobby Brown filming something? Are they meeting up for a British-actors-who-will-never-rise-past-their-iconic-character cabal meeting? And if so, where's the president of the society, Daniel Radcliffe?

This also does nothing to explain how Matthew Lewis became a post-wizarding sex symbol, or what his tattoo really means—since he's had it long before Stranger Things became a hit on Netflix.

"A lot of people ask what my tattoo means," wrote Lewis in the tantalizing photo caption. "Now you know."

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NO WE DO NOT.