Mission sur le Nil

Jack and Annie must uncover the secret of an English nurse, Florence Nightingale. They land in Thebes, in nineteenth-century Egypt, only to discover that Florence is not yet famous and has never worked in a hospital! To make matters worse, they are put in charge of a baby baboon named Koki. How will they follow Florence and get to know her while minding a mischievous little monkey? Part of the Magic Tree House series.