Explore the murkier corners of Aberdeen at your own pace with this highly acclaimed self guided audio walking tour of Aberdeen.  Beginning from the Mercat Cross, you'll weave your way through hundreds of years of history while discovering the stories of piracy, slavery, and insurrection that the city hides in plain sight.  Hear about "Indian Pete" and his efforts to banish child slavery.  The tour is ready whenever you feel like taking a stroll. It plays audio automatically at exactly the right time and place using your smart phone's GPS and the VoiceMap mobile app, which also works offline. It does not need a network connection to work. If you've got an hour and want to see some of the grisly and gloomy corners that Aberdeen has to offer – this is the tour for you!