TY - BOOK AU - Buckey,Sarah Masters AU - Giovine,Sergio TI - The hidden gold: a Marie-Grace mystery T2 - American girl. A Marie-Grace mystery SN - 032991829X (FollettBound) PY - 2012/// CY - Middleton, WI PB - American Girl KW - French Americans KW - Juvenile fiction KW - Friendship KW - Riddles KW - Steamboats KW - Mystery and detective stories KW - Mississippi River KW - History KW - 19th century KW - Mystery fiction KW - gsafd N1 - "American Girl mysteries."; Ages 9 and up N2 - "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 to find the gold--and they're not the only ones looking for it! An illustrated "Looking Back" essay provides facts about the 1850s"-- ER -