Tears
Delphine wipes her eyes dry after laughing too hard at because of a silly childhood story Cosima had told her, something about how she broke her glasses one day because she got too close to her microscope a little too fast. She hears Cosima's radiant laugh echo off the walls of their apartment as she walks down the hall to get tissues. Not only a month later, Delphine's tears are falling for a different reason as the laugh of her lost explorer echo off the walls of her heart.