Adam by Maryann Jordan

When a routine assignment becomes the mission of a lifetime.

Adam was sure the security escort would fall into the category of the most boring mission ever. But he enjoyed getting to know the beautiful and intelligent professor’s assistant. But he caught Valerie in a meeting that ended their relationship before it began.
When Valerie travels to Columbia, she discovers the man she vowed to forget was the only one who could help her.
Wanting to keep her safe as well as seek her forgiveness, Adam rushes to Columbia, and with the help of his fellow LSI Keepers, finds where she is in hiding. They travel together to get back to California.

But trouble follows her home.

Can Adam get to her in time to save her once more? Or will their romance again be over too soon?