Médecins Sans Frontières is an extraordinary organization in many ways, not least in the way its volunteers generously shared their stories for this book. Many related difficult memories with candor; I hope they feel their trust was well placed. Since the first edition of Hope in Hell was published in 2004, many have remained friends, which I take as a positive sign.

I am grateful to the MSF teams who welcomed me into their homes and compounds in the field, especially James Knox, Maria-Elena Ordoñez, Martha Anderson, Mónica Rodríguez, Carla Peruzzo, Ya-Ching Lin, Peter de Bakker, Sebastiaõ Vemba, Mattias Ohlson, Patrick Lemieux, Bertien van Gijssel, Hernan del Valle, Kathleen Bochsler, David Croft, Gerhard Schmid, Benjamin Ugbe, Maarten Van Herk, Tracy Cabrié, Michel Plouffe, Veronika Siebenkotten, Monika Osvaldsson, Lesli Bell, Max Cosci, Gabby Pahl and Asha Gervan.

MSF-Canada was unfailingly supportive. Special thanks to Tommi Laulajainen and David Morley for believing in the project at the beginning, and to Carol Devine for her encouragement. For their help during the writing of this new edition, thank you to Avril Benoit, Ben Chapman and Naomi Sutorius. Above all, grosses bises to Isabelle Jeanson for her enduring friendship.

At MSF-USA in New York, thank you to Nicolas de Torrente, Kris Torgeson, Kevin Phelan, Lorna Chiu and Emily Linendoll.

Physicians Christa Hook, Richard Bedell and Susan Shepherd patiently and articulately explained technical subjects and corrected my misunderstandings. I bear full responsibility for any that may remain in the text.

Of the many people outside MSF who shared their insights, I am particularly indebted to two of them. Renée Fox, professor emerita of sociology at the University of Pennsylvania, read a portion of the manuscript and offered wise suggestions and random acts of encouragement when I needed them most. Amanda Allan of the University of Melbourne, a researcher in the psychosocial effects of humanitarian aid work, was inexplicably generous in sharing her findings with me.

Thank you to Lionel Koffler, Michael Worek, Brad Wilson and Kathleen Fraser at Firefly Books for an unparalleled opportunity; to Rosemary Shipton, my superlative editor, who supplied the clear-headed direction I needed to turn the first draft into a final manuscript; Maria DeCambra for her intrepid photo research; and Jane Gates for her help in preparing this third edition.

My deepest appreciation goes to Wendy, for putting up with the physical and emotional absence this book required and for welcoming me home when the work was done.