The event, from 8 tonight through 8 tomorrow morning, will help raise money for the family's medical and daily living expenses. AML is a disease in which cancer cells are found in the blood and bone marrow. Mark, a sixth grader at Haverford Middle School, underwent a bone-marrow transplant on March 30. His mother has taken a leave of absence from her job to care for her son.
Participants register and collect pledges for each hour danced.
Trinity Lutheran Church is at 1141 West Chester Pike.