The Miraculous by Jess Redman
Wunder Ellis is a miracologist, a person who collects evidence of miracles. From the time he was six years old, he became aware of phenomena that could not be explained with traditional logic. He records and numbers these entries in a journal titled The Miraculous.
Wunder's faith in miracles is destroyed when his infant sister dies. He no longer believes. He removes all evidence of miracles from his room: a Calendar of the Saints, statues of angels, books and scriptures from many different faiths, and his framed baby photo inscribed with the Willa Cather quote Where there is great love there are always miracles.
The Miraculous is a story of grief, viewed from the perspective of faith. Faith that is lost and faith that is eventually regained. Wunder and his father worship at St. Gerard's, a traditional Christian church. However, the narrative includes references to numerous faith traditions including Jesa, the Korean ceremony to honor the dead, the Hand of Fatima, and the Twin Miracle of the Buddha. His newly found friend Faye wears a black cloak and is a student of the paranormal, specializing in the study of witches and ghosts.
Behold! I tell you a miracle. We will not all sleep, but we will all be changed.