The Shelbourne Ultimatum is a 2012 novel by Irish journalist and author Paul Howard and the eleventh in the Ross O'Carroll-Kelly series.^[1]^[2]

Title

The title is a reference to The Bourne Ultimatum and the Shelbourne Hotel.

Plot

Ross survives the shooting depicted at the end of NAMA Mia!, but has to deal with Gardaí who don't believe his story, his son, and Sorcha.^[3]

v t e Ross O'Carroll-Kelly by Paul Howard
Novels	The Miseducation of Ross O'Carroll-Kelly (2000) Roysh Here, Roysh Now… The Teenage Dirtbag Years (2001) The Orange Mocha-Chip Frappuccino Years (2003) PS, I Scored The Bridesmaids (2005) The Curious Incident of the Dog in the Nightdress (2006) Should Have Got Off at Sydney Parade (2006) This Champagne Mojito Is the Last Thing I Own (2008) Mr S and the Secrets of Andorra's Box (2008) Rhino What You Did Last Summer (2009) The Oh My God Delusion (2010) NAMA Mia! (2011) The Shelbourne Ultimatum (2012) Downturn Abbey (2013) Keeping Up with the Kalashnikovs (2014) Seedless in Seattle (2015) Game of Throw-ins (2016) Operation Trumpsformation (2017) Dancing with the Tsars (2018) Schmidt Happens (2019) Braywatch (2020) Normal Sheeple (2021) Once Upon a Time in… Donnybrook (2022) Camino Royale (2023) Don't Look Back in Ongar (2024)
Other books	Ross O'Carroll-Kelly's Guide to (South) Dublin: How To Get By On, Like, €10,000 A Day (2008) We Need to Talk About Ross (2009) RO'CK of Ages (2021)
Plays	The Last Days of the Celtic Tiger (2007) Between Foxrock and a Hard Place (2010) Breaking Dad (2014) Postcards from the Ledge (2017)
Other	The Twelve Days of Christmas (2005) Characters