The Trials of Apollo #1 : The Hidden Oracle

Literary awards - Goodreads Choice Award for Middle Grade & Children's (2016).

To punish an immortal, one could strip them of their divine status and render them mortal. This is precisely the fate that befalls the god Apollo after incurring the wrath of his father, Zeus. Cast down from Olympus, Apollo finds himself weakened and bewildered, landing in the bustling metropolis of New York City as an ordinary teenage boy. Stripped of his godly powers and millennia of immortality, he must navigate the complexities of modern life, biding his time until he can earn back Zeus's favor.

However, Apollo's descent to humanity does not grant him respite. He becomes a target for a myriad of adversaries—both divine and mortal—who seek to see him permanently vanquished. Desperate for aid, Apollo turns to the only refuge he knows: Camp Half-Blood, a sanctuary for contemporary demigods. There, amidst allies and foes alike, Apollo must forge alliances and confront his past in a bid to reclaim his divine heritage.