5The STEM Files graphic novel series focuses on the hilarious, top secret stories of ambitious, but inept, would-be evil villains. Top Secret: MechaNix focuses on the blundering would-be evil villain Megan Nicks, aka MechaNix, as she attempts to seek revenge by building a larger-than-life robot kitty. But she fails miserably due to her lack of knowledge about robotics. It's hard to unleash your robot if you don't know how to properly build one Each book in the series focuses on a key STEM concept. Includes educational callouts, sidebars, and backmatter material. Supplemental activity also included.