When Nancy stumbles on an old diary full of secret clues in her own house, she finds a mystery that begins with one little old book--and ends with one big surprise! .

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The clue in the crumbling wall - NANCY DREW MYSTERY STORIES #
Secrets can kill - 1 ; THE NANCY DREW FILES #
Deadly intent - 2 ; THE NANCY DREW FILES #
Murder on ice - 3 ; THE NANCY DREW FILES #
Smile and say murder - 4 ; THE NANCY DREW FILES #