Tree Girl - Mikaelsen, Ben (HarperTempest, 2004)
When, protected by the branches of one of the trees she loves to climb, Gabriela witnesses the destruction of her Mayan village and the murder of nearly all its inhabitants, she vows never to climb again until, after she and her traumatised sister find safety in a Mexican refugee camp, she realizes that only by climbing and facing their fears can she and her sister hope to have a future.