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book cover of The Pumpkin Principle

The Pumpkin Principle

(The fourth book in the Pratt Twins series)
A novel by

Is the decaying Victorian mansion on Crabtree Hill really haunted? Identical twins Chris and Susan Pratt decide there's no time like Halloween to find out. Then another mystery arises: what to do when they both fall for the same boy. A third mystery: how to make the annual Halloween Dance special. The girls encounter unexpected tricks and treats as they cleverly solve all three mysteries. Young Adult Fiction by Cynthia Blair; originally published by Fawcett Juniper


Used availability for Cynthia Blair's The Pumpkin Principle

Paperback Editions

August 1986 : USA Mass Market Paperback

Title: The Pumpkin Principle: (#4)
Author(s): Cynthia Blair
ISBN: 0-449-70205-7 / 978-0-449-70205-5 (USA edition)
Publisher: Fawcett
Availability: Amazon   Amazon UK   Amazon CA   

January 1976 : UK Paperback

Title: The Pumpkin Principle (Mystery masquerades)
Author(s): Cynthia Blair
ISBN: 0-340-50586-9 / 978-0-340-50586-1 (UK edition)
Publisher: Knight
Availability: Amazon   Amazon UK   Amazon CA   

Kindle Editions

January 2015 : USA, Canada, UK Kindle edition

Title: The Pumpkin Principle (The Pratt Twins Book 4)
Author(s): Cynthia Blair
Publisher: Belgrave House
Availability: Amazon   Amazon UK   Amazon CA