Lost in emptiness {klance/laith fanfiction}

Lance is worried about keith. Keith hasn't been eating much, his eyes are empty, he doesn't laugh or smile. Lance wants more then anything to see a genuine smile appear on Keith's face. Keith's pretty eyes that were once filled with emotions are now empty, Keith's smile would appear quite often but now it's like it disappeared, the keith lance once new will soon be gone if he doesn't do something. Lance doesn't understand what is making Keith act like this, but a mission they go on together changes everything.