TY  - BOOK
AU  - Cole,David
AU  - O'Toole,Shannon
AU  - Liu Fang
TI  - Shu xue xiao tian cai tan an zu. Shi zong de dui you
SN  - 9787531975403
U1  - 813.6 23
PY  - 2022///
CY  - Harbin : 
PB  - Heilongjiang Children's Publishing House
KW  - Children's stories
KW  - Clubs
KW  - Juvenile fiction
KW  - Mathematics
KW  - Kidnapping
KW  - School children
N2  - When FBI Special Agent Carlson is kidnapped in Egypt while investigating the plane crash of an eccentric billionaire inventor, Jordan and his friends spring into action. Catherine, The Math Kids must unravel the clues in Howell's mysterious will before it's too late. If they can't figure out the secret of the triangle in time, Howell's money will be gone forever. Now the Egyptians are after the Math Kids, too. In their most exciting adventure to date, the four

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