Trish and Rob MacGregor have been professional writers for 25 years. They have mined numerous synchronicities and have fruitfully used the knowledge derived from them. A synchronistic meeting on a flight in the 1980s, for example, resulted in their leading adventure tours to South America for Avianca Airlines. One synchronicity after another led to their many non-fiction books on dreams, psychic development, astrology, yoga, the tarot, divination, and animal symbolism. In 2003, they took over the writing of the popular Sydney Omarr astrology series.

They are also novelists. Trish, writing as T.J. MacGregor, won the Edgar Award in 2003 for best original paperback, for Out of Sight. Her 33 novels have been translated into 14 languages. Among the most recent, Esperanza - written as Trish J MacGregor - was published in September 2010. The sequel, Ghost Key, was published in 2012.