The big issue with writers' festivals is that you can't be at three or four events at once. So Saturday's rich array of offerings presented the ongoing dilemma of which writer to see, which can lead you down unexpected paths.
Before 11.30am in the morning I confess I was completely unfamiliar with the works of Scottish-Nigerian poet, memoirist and fiction writer Jackie Kay. By 12.30pm I was completely wowed by her humour, her writing, her history - and her broad Scottish accent.
Born in Edinburgh to a Scottish mother and Nigerian father, Kay was adopted by a white Scottish couple (who had married in New Zealand) and grew up with her adopted brother in Glasgow, where black faces were absolutely not common.
Superbly hosted by Stephanie Johnson, Kay told the audience of the time she travelled to Nigeria to make contact with her biological father, who had become an evangelist Christian and viewed his daughter as evidence of his sin. She had tracked him down via Google: "I put his name in and Pop popped up." But Pop didn't want her in his life so she has written him out of hers.
Kay recalled she was always being asked in Glasgow where she was from. In Nigeria, because her skin was lighter than the locals, a woman kept staring at her. She thought Kay was white.