In "Finding J. Hubbard, " amateur Black detective Zora Erickson reopens the cold case concerning the disappearance and presumed death of her old teaching friend, Jane Hubbard. Jane was swindled by a broker who feared her testimony, but there are plenty of other suspects who might have wished her dead. Zora collaborates with the detective who originally handled the case, and along the way they form a friendship. But suddenly Zora finds hew own life threatened by a persistent, anonymous enemy. She must take a daring trip to solve the mystery of Jane Hubbard.