Adèle and Simon, older sister and younger brother, live in Paris. In the first book of this growing series set in the early 20th century, they travel around Paris and in the second, they visit America.

Sepia-colored endpapers trace their routes and the artist’s characteristic ink-and-watercolor work depicts each destination in impeccable period detail. The book’s old-fashioned appeal comes in part from McClintock’s gentle pen-and-watercolor art. The deceptively simple scenes open up the more the reader studies them; her illustrations are meticulously researched and supplemented with endnotes explaining the choices in each picture.