From the back of the book:
Npbody wants to be around Tulip, but her outlandish behaviour doesn't matter to Natalie. Natalie finds Tulip exciting, and at first she doesn't care that other people are so upset and unnerved by Tulip's bizarre games, like Stinking Mackerel and Road of Bones. But as the games become increasingly wild and sinister, Natalie realizes that Tulip is going too far. Much too far. And, deep inside, Natalie knows that Tulip won't rest until she's won the most dangerous game of all.

Bought at the Penrith Library book sale.

Released at Floriade. Left on a modular bench seat near the ferris wheel.