Prior to becoming the meddling time traveller known as "the Monk", the Monk came from the same place as the Doctor at a time 50 years after the Doctor left. (TV: The Time Meddler) One source depicted the Monk "crossing his heart with his fingers", (PROSE: The Mutation of Time) possibly indicating him to have a single heart much as the First Doctor did; (TV: The Edge of Destruction) even though having a single heart was also a known marker of human biology. (TV: Spearhead from Space, et al.)
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