Black Heart of Jamaica is the fifth book in the Cat Royal series by British author Julia Golding.

Cat and Pedro decide to earn a living as a duet of acting and playing the violin, as Cat feels uncomfortable at living with Frank, Lizzie and Johnny without working, and Pedro decides to go with her.

Mr Hawkins thinks that slavery is lawful and fair, and he still believes that Pedro belongs to him.

At his plantation Cat falls ill with malaria and while she is still delusional and sick Billy rescues her.

In the end Cat gets involved in a slave revolt but Pedro tells her to leave, while he will stay and help his fellow men gain their rights of freedom and equality.