Love is worth everything, eighteen-year-old Madeline sums up the novel The Little Prince in the book Everything, Everything by Nicola Loon. Madeline, like the main character in her favorite novel, decides to follow her heart even though it means she might lose her own life. She suffers with SCID, a rare condition characterized by a nearly nonexistent immune system, and has lived all of her life inside a controlled, sterile environment. When she has the chance to experience love, however, Madeline decides a chance at being alive is worth the risk she must take.