Former President Harry Truman had a lot on his mind in June 1945. In office for just two months, he was saddled with countless pressing problems. Although the European part of World War II was over, Imperial Japan showed no sign of giving up. Planning for an invasion (which advisers warned could claim 1 million casualties) was well underway. The United Nations was being created. The atomic bomb was in the final stages of development.

And, he was quickly realizing, he lived in a haunted house.