So glad you found your hens!
Here's a dilemma at our house: Rhett, our RIR hen, was missing and we thought for sure she was a goner. She is the adventerous one, and keeps flying over the fence! But the next two mornings, she has come back for breakfas, but took off again. I am hping against hope she will come back again today, and my plan would be to follow her to find out where she is going. I am suspicious that she has laid her first egg(s) somewhere and has gone "broody". Please, everyone keep your fingers crossed she has made it through one more night away from home!