Escaped/missing female juvenile tortise-shell cat (aptos) (aptos)

Young cat, just adopted yesterday from brother-in-law's barn, managed a feat of athleticism and leaped up to a high window that was cracked open and escaped into the yard last night. Very friendly little snuggle-bug, mostly black, not spayed or micro-chipped, vet appt was set for Monday. Has a small bump on her right side. Praying for her safe return, any help most welcome.