Gray Matters is now available in the US:
iTunes: https://apple.co/2sMvLRV
Amazon: https://amzn.to/2RfVLik
Gray Matters is now available in the UK and Ireland:
iTunes: http://apple.co/2bMUjnh
Amazon.co.uk: http://amzn.to/2bcBBEf
Google Play: http://bit.ly/2baIOYk
Xbox: http://bit.ly/2byAoXG
Gray matters