According to Bails' Who's Who, Al Fago's Fago Studios was packaging comics for Charlton in this period (and Charles seems definitely related to Charlton). The art style on the cover and the first two interior features looks like Fago's work.
Art appears to be by same artist as previous story, so assuming that "E.C." is Ellis Chambers.
At least two artists worked on this, there is a major difference in the inking of the first pages and the last pages. First panel may have a signature on the left side of "GC" or "GE".