While painting a closet in the White House, KC discovers an old box full of handmade toy horses that once belonged to Thomas Jefferson. KC and Marshall go to Monticello, Jefferson’s home, to return the horses, but just after they get there, the box with the horses inside disappears! They have to explore historic Monticello, with its dank wine cellar, tiny dumbwaiter elevator, and spooky family cemetery to track down the thief before the horses are gone for good! 白宮的壁畫，KC發現了一個老舊的玩具馬，是很久以前傑弗遜總統所留下來的。KC和Marshall想要將玩具馬歸還給傑弗遜家族，但是當他們到達傑弗遜總統的家鄉時，原本在箱子裡的玩具馬卻消失了！KC和Marshall為了找回玩具馬，又會遭遇到什麼事情呢？到底是誰偷了玩具馬呢？

作者簡介：

Ron Roy is the author of Random House's popular A to Z Mysteries. He lives in an old farmhouse in Connecticut with his white puppy, Pal. When he's not writing a thrilling new A to Z Mystery or Capital Mystery, Ron Roy spends his time traveling all over the country and restoring his Connecticut farmhouse. Timothy Bush is a writer-illustrator with many children's projects to his credit, including the elaborate visual extravaganza James in the House of Aunt Prudence. He lives in New York, New York.

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