What was the incomplete novel called that Charles dickens wrote?

The Mystery of Edwin Brood.

Like all of Dickens' novels, it was intended to be first published in monthly instalments.

The first 6 instalments of "Edwin Brood" were published between April and September 1870, with the intention of continuing until March 1871.

Charles Dickens died on 9th June 1870, leaving the work unfinished.