Is it true that a dog barked at a mummy and died the next day?

Answer 1

You could be getting mixed up with the story of Lord Carnarvons dog, Carnarvon was one of the people involved it the discovery of Tutankhamens tomb.

A few months after the tomb's opening tragedy struck. Lord Carnarvon, 57, was taken ill and rushed to Cairo. He died a few days later. The exact cause of death was not known, but it seemed to be from an infection started by an insect bite. Legend has it that when he died there was a short power failure and all the lights throughout Cairo went out. His son reported that back on his estate in England his favorite dog howled and suddenly dropped dead at the same time that Carnarvon died.