Gertrude, Gumshoe by Robin Merrill

Gertrude is back!

After being thrown in the clink for private investigating without a license, she's fled the state to go where her talents will be more appreciated: South Dakota.

She has big plans to set up shop, but an injury halts her journey shortly after crossing The Sunshine State's state line. She and Calvin are forced to hole up in a struggling campground, and when Gertrude finds the body of the campground owner, she is certain the man has been murdered.

She is the only one who is certain of this. Can she convince the sheriff that there's been a crime? Can she convince the good people of South Dakota that she is a talented investigator they should want to keep around?