Here's a summary from Amazon:
Andi Grant adores her 6-year-old brother Daniel, a "miracle child" who fell down a mine shaft and survived. People regularly come to him for blessings and healings (which sometimes seem to work), and Andi is horrified by his exploitation, esp. when she finds signs of a stalker around their home. With the help of her once-and-maybe-future boyfriend Jeff, she comes up with a plan so audacious, so dramatic, it will stop the attention on Daniel forever: an "Anti-Miracle" that will unravel with the slightest examination of the facts, and cast doubt on Daniel's powers forever after.
As her plan comes together, the stalker draws closer, and the clock ticks toward Daniel's star turn at the local Paradise Days celebration, Andi finds herself wrestling with her own beliefs in God and her brother, and wondering if what she really needs is . . . a miracle.
Let me know what you think. This book wasn't for me; I couldn't get into it. You might really enjoy it, and if you do please share your thoughts.