In 2013 Marlo Gottfurcht Longstreet lost her eleven-year-old son, Tanner, to a glioblastoma brain tumor. It was discovered that he carried a hereditary cancer gene…the mutant p53. Marlo's daughter, Casey, has the same mutated gene and an over 90% chance of developing many types of cancer. Rainbow Around The Son chronicles the days of Tanner's illness, death and Marlo's determination to keep Casey healthy. Written in journal format, this compelling read is raw, real and powerful.