Alvin's Secret Code pdf epub mobi txt 电子书下载 2024

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Hicks, Clifford B.

2006-3

159

$ 13.50

9781932350005

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发表于2024-08-31

Alvin's Secret Code epub 下载 mobi 下载 pdf 下载 txt 电子书下载 2024

Alvin's Secret Code pdf epub mobi txt 电子书下载 2024

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The first story about Alvin, possessor of the "Magnificent Brain," and "Shoie," his sports-hero pal, is back in print In Alvin's Secret Code, the two twelve-year-olds happen across a peculiar piece of paper in the gutter of a sidewalk. Yes, it's in code, and a tangled adventure begins, enlivened by Alvin's sister Daphne ("The Pest"), younger than he is but often wiser. Readers are not only invited to assist in untangling a century old mystery. They will suddenly find themselves engrossed in mastering the basics of cryptography, a highly useful art for solving and keeping secrets when threatening criminals show up. Join Alvin and Company for fun, mystery and adventure--"with authentic instruction in the art of code making and breaking.

Alvin's Secret Code 下载 mobi epub pdf txt 电子书