Cirrus@Austlit

'The town of Spindrift is home to the Orphanage School where Finlay lives. Just outside town is the painfully posh Brathelthwaite Boarding School, home to Honey Bee. When the two schools compete at the Spindrift Tournament, stakes are high, tensions are higher, and some people are out to win at any cost. And then Whispering Wars break out, and Spindrift is thrust onto the front lines. Children are being stolen. Witches, sirens and a deadly magical flu invade the town. Finlay, Honey Bee and their friends must join forces to outwit the encroaching forces of darkness and turn the tide of the war. But how can one bickering troupe outwit the insidious power of the Whisperers? And who are the two mysterious figures watching them from the shadows?'

Source: Publisher's blurb.