Helen S Hamilton – illustratör

Happy Hollisters and the Old Clipper Ship

HARDCOVER Special Edition

Happy Hollisters at Lizard Cove

HARDCOVER Special Edition

Happy Hollisters and the Scarecrow Mystery

HARDCOVER Special Edition

Happy Hollisters and the Mystery of the Totem Faces

HARDCOVER Special Edition

Happy Hollisters and the Ice Carnival Mystery

HARDCOVER Special Edition

Happy Hollisters and the Mystery of the Little Mermaid

HARDCOVER Special Edition

Happy Hollisters and the Mystery at Missile Town

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Happy Hollisters and the Cowboy Mystery

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Happy Hollisters and the Haunted House Mystery

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Happy Hollisters and the Secret of the Lucky Coins

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Happy Hollisters and the Castle Rock Mystery

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Happy Hollisters and the Cuckoo Clock Mystery

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Happy Hollisters and the Sea Turtle Mystery

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Happy Hollisters and the Punch and Judy Mystery

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Happy Hollisters and the Whistle-Pig Mystery

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Happy Hollisters and the Ghost Horse Mystery

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Happy Hollisters and the Mystery of the Golden Witch

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Happy Hollisters and the Mystery of the Mexican Idol

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Happy Hollisters and the Monster Mystery

HARDCOVER Special Edition

Happy Hollisters and the Mystery of the Midnight Trolls

Happy Hollisters

Volume 1 - Paperback

Happy Hollisters on a River Trip

Happy Hollisters at Sea Gull Beach

Happy Hollisters and the Indian Treasure

Paperback

Happy Hollisters at Mystery Mountain

Happy Hollisters at Snowflake Camp

Happy Hollisters and the Trading Post Mystery

Happy Hollisters at Circus Island

Happy Hollisters and the Secret Fort