Egyptian mummy missing a heart
If you've ever watched Horrible Histories you'll know that the Egyptians had some strange ways to bury important people.
Mummification involved all the organs being taken out and carefully looked after - except for the heart, which is needed to get into the afterlife.
Joe's been to see 'Jed', a mysterious 3,000-year-old mummy with a difference.
Jed is missing his heart - and that's left historians a little bit puzzled.