One of her jobs is working as a caretaker of Pablo Escobar's old home. When a new group of renters arrive in the middle of the night — ostensibly movie-makers flashing a city film permit — Cari sees them for the criminals they are.
She's warily co-operative (Harris is adept at nailing characters using dialogue and reportage-style prose) and, when she expertly pieces together a machine gun her new tenants have left in a bedroom, we know there's more to Cari's skill set than housekeeping.
Harris soon takes us into her past as a Colombian FARC child soldier. Word has it there's $25 million worth of cartel gold hidden inside a safe in the mansion and two competing enterprises have their eyes on it — (the safe detail seems to be based on the true story of one being found in 2016 at Escobar's Miami home as it was demolished).
It's a plot device almost as old as the crocodiles, manatees, parakeets and the other wildlife that populate this novel, lending it a mythical sheen in an otherwise up-to-the-minute Miami but it works well for Harris' purposes here.
Of course, Harris' new monster Hans-Peter Schneider, a brothel owner who has a liquid cremation machine in his Biscayne Bay warehouse, is one of the interested parties. When Cari first shakes his hand she catches a "whiff of brimstone off him. Like the smell of a burning village with dead inside the houses" but the horrors here are glimpsed against a real-world city. Harris celebrates this in an afterword calling Miami an "intensely American city, built and maintained by people who came from somewhere else".
The novel works best when Cari is on the page and, if Harris introduces a few too many characters in the second half of the book — a detective, a crooked lawyer, another Colombian sicario — the acuity of his prose means even these are a pleasure to read. Unlike many of his thriller and suspense contemporaries who churn out multiple novels a year, this is only the 78-year-old author's fifth.
"I can't write it until I believe it," said Harris in one of his rare interviews.
And you can sense that belief on every page of this mesmerising novel.
CARI MORA by Thomas Harris
(William Heinemann, $37)