
Librarian Note: There is more than one author in the GoodReads database with this name. See this thread for more information. Peter O'Donnell also wrote as Madeleine Brent. http://www.cs.umu.se/~kenth/modesty.html is an excellent resource on this author. To help keep the novels and the adventure strip collections separate, here's some info about the Modesty Blaise works. In 1963, O'Donnell began his 38-year run as writer of the Modesty Blaise adventure story strip, which appeared six days a week in English and Scottish newspapers. He retired the strip in 2001. Each strip story took 18-20 weeks to complete. Several publishers over the years have attempted to collect these stories in large softcovers. Titan Publishing is currently in the process of bringing them all out in large-format softcover, with 2-3 stories in each books. These are called "graphic novels" in the Goodreads title. Meanwhile, during those 38 years, O'Donnell also wrote 13 books about Modesty Blaise: 11 novels and 2 short story/novella collections. These stories are not related to the strip stories; they are not novelizations of strip stories. They are entirely new, though the characters and "lives" are the same. These have been labeled "series #0". There is a large article on Peter O'Donnell on Wikipedia, with a complete bibliography.
Series
Books

The Girl in the Iron Mask
2013

Sabre-Tooth
1966

Pieces of Modesty
1972

The Young Mistress
2013

Modesty Blaise 13
Yellowstone Booty
2008

Modesty Blaise 5
Bad Suki
2005

Modesty Blaise 3
Top Traitor
2004

The Impossible Virgin
1973

The Killing Distance
2015

Sweet Caroline
2010

The Killing Game
2017

I, Lucifer
1967

Lady in the Dark
2003

Modesty Blaise 11
The Inca Trail
2007

Modesty Blaise 7
The Green-Eyed Monster
1979

The Lady Killers
2009

The Children of Lucifer
2017

Ripper Jax
2015

Modesty Blaise
1965

The Iron God
2023

The Silver Mistress
1973

Cobra Trap
1996

Death in Slow Motion
2009

Modesti Blejz 2
2019

The Warlords of Phoenix
1987

Modesty Blaise 12
Death Trap
2007

A Taste for Death
1969

The Xanadu Talisman
1981

The Grim Joker
2014

Dr. No
1696

The Murder Frame
2016

Modesty Blaise 14
Green Cobra
2008

Live Bait
2002

The Scarlet Maiden
2009

Dragon's Claw
1978

Modesti Blejz 3
2021

The Night of Morningstar
1982

Modesty Blaise 8
The Puppet Master
1987

Modesty Blaise 6
The Hell-Makers
1986

Last Day in Limbo
1977

Dead Man's Handle
1985

Modesty Blaise 9
The Gallows Bird
2006

Modesti Blejz 1
2018

Million Dollar Game
2011

The Double Agent
2011