By the time Ensign Cassidy and Darrin had made it sickbay, Darrin's age had gone down even further.  Now, on the younger side of three, he toddled into the large medical bay.  Thumb firmly planted in his mouth, he gave everyone a watery smile.  "Hewwo."  He addressed everyone and no one.<br/><br/>"Sweep now?"  His eye lids hung like too heavy frames on flimsy nails.  "I's tiwed."  He held his arms in an open "Y" for his fellow Ensign to pick him up.<br/><br/>He'd had a long day and the bright lights of the room were hurting his eyes.  He laid his head down on Ensign Cassidy's shoulder, little fingers tangled in her hair and soon, almost translucent eyelids slid down, down, down until they long, silky black lashes entwined with lower ones as he drifted off to sleep.<br/><br/>