His first book, Katie's War, is about the civil war period in Ireland; it was published in 1997. Katie's War has recently won the Peter Pan Award 2000 -- an award created by IBBY Sweden for a children's book, translated into Swedish, which gives information on another culture.
Wings Over Delft, the first book in the Louise trilogy, won the Bisto Book of the Year overall award in 2004.
Aubrey feels very strongly about the issue of landmines in ex-warzones throughout the world, and wrote The Cinnamon Tree to help focus attention on this issue.
Aubrey describes where the ideas for the characters in Katie's War came from, and how they grew and developed into real people.
Aubrey runs into trouble at airports, and describes where he gets his inspiration from.
Fugitives! - A Story of the Flight of the Earls
Download Teaching Guides: Teaching guide to the novel by Peter Heaney
Download Teaching Guides: Teaching guide to the novel by Peter Heaney
Katie's War
Download Teaching Guides: Teaching guide from O'Brien Teaching Guides Collection 3
Download Teaching Guides: Teaching guide from O'Brien Teaching Guides Collection 3
The Cinnamon Tree - A Novel Set in Africa
Download Teaching Guides: Teaching guide for The Cinnamon Tree from O'Brien Teaching Guides for Second Level Schools.
Wings over Delft
Download Teaching Guides: Teaching guide to the novel by Liz Morris
The Rainbow Bridge
Download Teaching Guides: Teaching guide to the book by Gillian Perdue