It's been a long time in the researching, writing and (by Jess Mikhail) illustrating, but it's finally out!
Two Brothers and a Chocolate Factory: The Remarkable Story of Richard and George Cadbury is a true story picture book aimed at 7-9 year olds but suitable for younger children being read to, and older children and adults.
Read about the story behind the story, including the months of (often tasty) research, here in my blogpost: Turning Black and White into Colour...
and about writing true story picture books, here and here (for SCBWI's Words and Pictures) and also here.
Picture of George Cadbury at approximately 20 years old, (c) Cadbury Archive.