Also, since Christmas is coming up, you could always just add it on as a last minute addition to your Christmas list (pfft, your parents won't mind!) or use some of the money you'll receive from relatives to buy it!
The book in question?
Welcome to Tamarind, where fish can fly, pirates control the waters, jaguars lurk, the islanders are at war, and an evil, child-stealing enchantress rules the jungle. Thirteen-year-old Maya, her younger brother, Simon, and her baby sister, Penny, have just landed their boat here after a terrible storm washed their parents overboard. After spending their entire lives at sea, it's a relief just to be on dry land. But Tamarind is unlike anything Maya could have imagined - a place both magical and terrifying. Now Maya will be lucky just to make it to tomorrow.
I can't help but feel so strongly about this book. I seriously just want everyone to buy it. If you love being fully whisked up and immersed in a completely different world full of endless possibilities and a breathless adventure, read this. It is literally the definition of a hidden gem. It's priceless and amazing and fast paced and entrancing and perfect.
Do NOT be put off by the fact Maya is 13. She does not come across as that horrible childish character.