Title: The Mark of Merlin
First published: 1977
Description: For Carla Murdock, recently orphaned and recovering from a serious illness, the summons from her guardian to his windswept Cape Cod house came as the last straw. With her life in tatters and her spirits at a low ebb on Merlin, her alsatian dog, seemed to offer comfort.

Then Carla began to learn the truth about her father's end and found herself swept into the intriguing mystery of a missing treasure. Encouraged by the strange and overwhelming love which grew between she and her guardian, Carla realised that her future was bright with promise.

[from the cover]
Subjects: Large type books, Fiction, romance, suspense, New england, fiction, Guardian and ward, Fiction, Dogs, Women dog owners, Murderers