Chinese Mantis Looking for the Best Spot to Deposit Her Eggs

I noticed this Chinese mantis making her way way out of our flower bed, where she had been hunting. She is beautiful, and I love the ways she walks. The way she moves reminds me of leaves gently moving because of a breeze.
I followed her progress as she made her way under our deck. But it seemed like I was making her nervous, so I left her alone for a few hours. My husband and I searched for her later, but we couldn't find her or her egg case (ootheca). If we find it later, I will share an image of it. (They are cool looking.)