Aitchison's earliest work was a script for Grace Gibson Radio Productions under the pseudonym David Carrick called Under Her Spell. While working for an advertising agency, Aitchison penned the first two episodes over a long weekend and slipped them under the office door. Grace's assistant Reg James passed them on to Grace who put them in production. The serial lasted 130 episodes and starred Fay Kelton, James Condon and Diana Perryman. He gained popularity in the late 1990s when he began writing the children's horrorMr. Midnight book series under the pseudonym of James Lee in 1998, after his publisherFlame Of The Forest Publishing came up with the idea of publishing a series of horror and suspense stories for children using Asian names and backdrops - which was considered refreshing for Singaporean audiences who were used to existing Western literature. The series was anthological in nature, each book containing two stories where readers would contribute their character's backstories and settings while "James" would flesh the stories out in their entirety. The series became widely popular not just in Singapore, but also neighbouring Malaysia, Thailand, Indonesia, Hong Kong, China, and Vietnam with over 3 million copies sold. In March 2006, Aitchison launched the Mr. Mystery series, which catered to the same demographic group as Mr Midnight, but with murder mystery stories solved by a group of characters. In June 2009, Aitchison launched a new series called The Young Immortals, featuring the trio of Train Tang, Jeffry Hunter and Tamaryn. Aitchison's other works include the Sarong Party Girl series, The Seriously Funny Anti-Stress Book, and Terror In Bali: An Eyewitness Account. He also penned the lyrics of some songs used for the National Day Parade in Singapore such as "One People, One Nation, One Singapore" and "My Singapore Story". In 1998, Aitchison penned the prose work Recollections, a recount of the different phases of Singaporean history read at National Day ceremonies held in schools across the island. In 2014 and 2015, Aitchison released two books on the history of Grace Gibson Radio Productions. The books, co-authored by Reg James, were titled Yes, Miss Gibson and A Theatre in My Mind.
Awards
In 2013, Aitchison won the inaugural "Australian Arts in Asia Awards" for his Mr Midnight and Mr Mystery series.
