Comic #2980: 2013-07-15

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Description

Comic Description:

In this comic panel, we see a character resembling a superhero, wearing a dark costume and a mask, holding a piece of paper in his hand. The background is a deep purple color.

Text on the paper: "If the real part of all non-trivial zeros of the Riemann zeta function is 0.5, the bomb's beneath a downtown dive.”

• Riddler

Below the main text, in smaller letters: "Fun Fact: Batman hasn't left his study in 10 years."