According to The Siberian Times, kennel owner Alla Morozova had already agreed with the couple that Maru would be placed on the train and returned to her.
Alla explained: “I never give up my puppies and when a dog is bought, it is stipulated that the owners should inform me if they do not need a dog anymore.”
125 miles in the journey, it’s thought Maru got scared and escaped the train as it came to a stop. This in spite of the fact she had an attendant there to watch her and make sure she was OK during the journey.