gm. Mauricio Magaldi is back this week with a bonus episode to talk about a story that's been grasping everyone's attention. You may remember the OneCoin frenzy from its peak in 2015-2016, or its highly publicised fall in 2017 when its creator, Dr Ruja Ignotava, disappeared without a trace and millions, if not billions, of dollars. Regulators issued warnings, police departments around the world got involved, victims of the scam came out to share their stories, and the so-called ‘Cryptoqueen’ is still nowhere to be found. Fast forward to right now, Ignatova is now on the FBI’s top 10 most wanted list, and developments in her case have been rolling in. Today, we are bringing you a very special interview with the person behind the incredible 2019 BBC podcast series, ‘The Missing Cryptoqueen’, which investigated the disappearance of Ignatova, and to chat about his new book: Jamie Bartlett. If you enjoyed the show, don't forget to subscribe and leave a review! Want to join the conversation on all the topics discussed? Tweet the show at: www.twitter.com/bchaininsider Special Guest: Jamie Bartlett .