More info about the book:
Three angels are sent down to bring good to the world: Gabriel, the warrior; Ivy, the healer; and Bethany, a teenage girl who is the least experienced of the trio. But she is the most human, and when she is romantically drawn to a mortal boy, the angels fear she will not be strong enough to save anyone—especially herself—from the Dark Forces.
About the author:
Alexandra Adornetto was fourteen when she published her first book, The Shadow Thief, in Australia. Alex lives in Melbourne, Australia; Halo marks her U.S. debut.
Be sure to check out the MacMillan page about the author and Halo: