Just throw it back, for one more night
Ephemeral had opened his mouth in an instant to speak but no words came out. Generally he was quick off the cuff with this sort of stuff. But this time he actually had to think about how long it had been. Time is such a strange and fickle thing. It wasn't a tangible something that Ephy could see and focus on and be able to explain in his limited way. And that was why he chose something that he could see in order to bolster his explanation.
"Sun wake. Sun sleep. Moon wake. Moon sleep. Sun wake. Sun sleep. Moon wake. Moon sleep. Sun wake. Sun sleep. Moon wake. Moon sleep. Sun wake. Sun sleep. Moon wake. Moon sleep. Sun wake." The boy rigorously went over each time he had seen the sun and the moon since his mother had first gone to sleep. It was nearing on a week since the yearling had last traveled with his mother, nearly a week since he had become truly alone.