While volunteering as a magazine delivery girl in a convalescent hospital during the Second World War, Molly uncovers a mystery involving the theft of rationed food supplies for sale on the black market.

When her family temporarily moves into a luxury apartment building in 1904 Manhattan, eleven-year-old Samantha tries to discover whether a series of mishaps is related to a curse on the building's owner.

Samantha organizes a talent show to support the library, but wonders what her special talent is. Includes historical notes on vaudeville as well as instructions for juggling scarves.

When Marie-Grace arrives in New Orleans in 1853, she is not sure she fits in, until an unexpected invitation opens the door to friendship.

"Marie-Grace can't wait to begin her journey up the Mississippi River with her father. The steamboat they're traveling on is the biggest and fanciest boat Marie-Grace has ever seen. It's crowded with all sorts of interesting passengers, including Wilhelmina Newman, a girl her age. Wilhelmina is traveling alone, and she's carrying a secret in one of her trunks--clues to hidden Gold Rush treasure. Marie-Grace and Wilhelmina have to unravel the clues...

As yellow fever threatens New Orleans in 1853, Marie-Grace cares for an abandoned baby.

In 1925, after witnessing the violent actions of some gangsters, twelve-year-old Emily accompanies her older sister on a trip to a luxurious hotel on the New Jersey shore but worries that the gangsters have come to the same hotel. Includes historical notes on the time period.