Goodreads
Goodreads asked Mark Carew:

Where did you get the idea for your most recent book?

Mark Carew It all started when I found out about the neurological condition, synaesthesia. This is a mixing of the senses, e.g. tasting shapes, or seeing coloured images when listening to music. I wondered if this would be an annoying or a useful thing to have. The idea didn't end up featuring too much BOA, but it was the starting point.

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