EMPTY ENVELOPE, THE A to Z 神秘事件 空信封

作者：  Ron Roy　著

出版社：Random House US 1998年6月

简介：
E is for Envelope...Dink keeps getting envelopes in the mail addressed to "D. Duncan." But the letters inside all start with "Dear Doris" and don't make any sense! Josh and Ruth Rose think someone's playing a trick on Dink. But Dink is sure there's more to it than that, especially after Doris herself shows up and demands her letters!