This children's aviation adventure from the Hunniwell Boys series follows young brothers Bill and Gordon Hunniwell. Their flying adventures lead them into a mystery involving platinum, beginning with a fishing trip and a strange proposal. It offers brisk action and suspense for young readers.
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Cover of the original edition (Project Gutenberg, public domain).
Text source: gutenberg.org · The work is in the public domain.
Opening of the book
THE HUNNIWELL BOYS AND THE PLATINUM MYSTERY three boys rescuing airplane from water The plane was swishing about in a foot or more of water when they reached it. THE HUNNIWELL BOYS AND THE PLATINUM MYSTERY By L. P. WYMAN, Ph.D. AǼǵƒLjǡ Ljż “The Hunniwell Boys in the Air,” “The Hunniwell Boys’ Victory,” “The Hunniwell Boys’ Longest Flight,” “The Hunniwell Boys in the Secret Service,” “The Lakewood Boys Series,” “The Golden Boys Series,” etc. A.L.Burt Company, New York logo Printed in U. S. A. The Hunniwell Boys Series THRILLING AVIATION STORIES FOR BOYS 12 TO 16 YEARS By L. P. WYMAN, Ph. D. The Hunniwell Boys in the Air The Hunniwell Boys’ Victory The Hunniwell Boys in the Secret Service The Hunniwell Boys and the Platinum Mystery The Hunniwell Boys’ Longest Flight Copyright, 1928 By A. L. BURT COMPANY THE HUNNIWELL BOYS AND THE PLATINUM MYSTERY