The STEM Files graphic novel series focuses on the hilarious, top secret stories of ambitious, but inept, would-be evil villains. Top Secret: Reverb focuses on the blundering would-be evil villain Ricardo Verboza, aka Reverb, as he attempts to seek revenge using super sonic sound. But he fails miserably due to his lack of knowledge about how sound travels. It's hard to shatter City Hall using sound if you don't know the science behind it! Each book in the series focuses on a key STEM concept. Includes educational callouts, sidebars, and backmatter material. Supplemental activity also included.