Producers Mark Johnson and Hunt Lowry are joining with 821 Entertainment Group to adapt John Grisham's 1999 bestselling novel The Testament, after nearly a decade of Grisham playing hard to get.

According to Variety, the novel revolves around a billionaire who defies his greedy relatives and leaves his $11 billion fortune to a mysterious illegitimate daughter doing charity work in the Brazilian wetlands. A down-and-out lawyer helps her battle her relatives over the fortune.

Grisham will have the right to provide creative input, which he didn't always have in the past -- one of the factors that pushed him away from Hollywood until about three years ago, when his fans prodded him to end his self-imposed movie moratorium.

No production date has been set.