It is graduation day for Mary Broomfield! But graduating from what... middle school... high school? The date of this story was December 1946, If she, along with her twin brother Billy, were eight years old in 1940 when he first became Captain Marvel, that would make them sixteen years old at the time of this tale.
Too old to graduate middle school yet younger than normal for a high school graduate. Although, perhaps, Mary was a prodigy. Her brother was employed at WHAM-TV as a news broadcaster, and would have had courses via a correspondence school to fit his busy schedule, so it is not specified when he himself graduated.
At her graduation, while others may have attended this ceremony, the only ones indicated as having been there were Mary's adoptive mother, and Susan Kent.
Susan was of course the female half of the team of Bulletman and Bulletgirl. Acquaintances through Mary's brother and Susan's boyfriend Jim "Bulletman" Barr, the heroines decided to spend time in their civilian identities. Just then, however, Susan was kidnapped by her old foes the Weeper and Doctor Riddle. Although their main grudge is with Bulletman, seeing his aid and girlfriend nearby is too tempting a target to pass up. However, Mary Marvel attacks the devious duo and frees Susan.
Following a riddle to a local asylum where the fiends indicate they are, the women suspect this is a trap and approach individually. This leads to both being captured by the rogues, and trapped in an airtight room. However, Bulletgirl frees Mary Marvel this time, and the pair intercept another clue leading them to the crooks attempt at stealing gold bullion from an aircraft. While Riddle parachutes to the ground while Weeper awaits him below, Bulletgirl and Mary Marvel outmatch these devious dudes and capture them...retrieving their loot!
