Final answer:
Doyle's purpose for including the gypsies may have been to shed light on the discrimination they faced and to add intrigue to the story.
Step-by-step explanation:
Doyle's purpose for including the gypsies in his work may have been to represent a marginalized and oppressed group in society.
By including the gypsies, Doyle may have wanted to shed light on the discrimination and persecution they faced during that time period. Additionally, the gypsies could have been used as a plot device to add intrigue and mystery to the story.