This is the fourth of a series of comics that embed mathematics appropriate for grades 4 through 6 in story told in comic book format. Printed versions of this comic are being used by students at Cumberland Trace Elementary in Bowling Green, KY. The comic is available as an e-book for the Nook at the link provided above. Hard copies of the comic are available at www.operationcomics.com. Supplementary materials are available for free below. For more information on the origin and goals of this comic, see the pre-print of the paper "Comic Books That Teach Mathematics" at http://works.bepress.com/bruce_kessler/8.

In this issue, Wonderguy encounters a talented trapeze artist named Aerial, who has decided to turn her impressive high-flying act into a career in crime. This presents a challenge to Wonderguy, who, despite his great strength, can not fly -- or can he? Wonderguy is going to need all the help he can get leave the ground behind and catch this heavenly hellion - especially from his mathematically-gifted sidekicks Claire and Dillon.

The mathematics concepts of finding proportional amounts and solving for a squared variable (using mostly linear equation techniques) are presented.