Guardian Angel — Anna Santos

What if the love of your life is your guardian angel?
Sam is a fallen angel. His job is to protect Kyra until she gets her wings. The problem is, she doesn't know him outside the virtual world. To her, his name is Max and he's her best friend online on whom she happens to have a huge crush.
When the time comes for Kyra to know the truth, they schedule a face-to-face meeting. But things get dangerous, and Sam needs to save her from invisible monsters.
More than ever, he needs to keep her safe until she turns into a Nephilim. That task turns close to impossible because of her inability to see the creatures. She's terrified and believes Sam is a crazy kidnapper who is obsessed with her.
Can he protect her long enough for her to turn and embrace her new form?