Lucky by Magic

Their fate depends on the luck of the draw.
When a prominent businessman suddenly dies from suicide, Evelyn suspects supernatural foul play after discovering that he only recently catapulted to success. Later, Frankie witnesses another man narrowly escape his own death moments after he was seen crying about his misfortune.

They soon discover that Lady Luck is behind the change of fate. And while she dishes out good luck to those who need it, after a year their luck abruptly turns bad and often leads to their deaths.
While Frankie and his friends close in on Lady Luck, her next victim hits close to home: Anna, Frankie's grandmother who is a young woman and still pregnant with Frankie's father in 1924, has made a deal with Lady Luck herself. If Frankie and his friends can't turn their luck around in time and stop Lady Luck from wreaking havoc on her victims, Frankie's life-and everyone he knows in his own time-could be at stake.
Lucky by Magic is the second book in the Lost by Magic series, which serves as the first series in the Art of Magic universe, containing the Coven and the Under the Moon series.