Eyes of Gray by Dani O’Connor

Grayson Thomas was the typical college senior with typical friends, a typical job and typical insecurities about her future. One Sunday morning, Gray's life became a little less typical, she saw a man clad in black, and started doubting her own sanity.

She initially regarded his presence as a figment of her imagination, but after he came into her home and started interrogating Gray about life's dilemmas, she realized that the man was not merely in her head, he was part of her past, present and demise. With the help of two doctors and a minister, Gray attempts to sort out the reason for the stranger's presence.