Johanna closed her eyes, letting the lull of his heartbeat give her confidence as she tried to remember something, anything. "I was leaving the hospital after visiting ... my grandmother!" She pulled back, beaming with excitement. "She'll know what to do if I just - "

Luke's face went from confusion, to horror, and then a blank sadness that infected her, squeezing her heart.

"Luke, what is it?" she asked shakily.

"Johanna," he said with a swallow, "your grandmother ...