Diane Duane 
High Wizardry [EPUB ebook] 

When a gifted little wizard begins experimenting with her new skills, her big sister and friend must save her from evil in this continuing fantasy series.Young wizards Nita and Kit face their most terrifying challenge yet: Nita’s little sister, Dairine. Not only is Dairine far too smart for a ten-year-old, she also recently has become a wizard, and worse yet, a wizard with almost limitless power. When Dairine’s computerized wizard’s manual glibly sends her off on her novice adventure-her Ordeal-Kit and Nita end up chasing her across the galaxy, trying to catch up with Dairine before she gets into trouble so deep that not even her brains can rescue her.Praise for High Wizardry"Duane is tops in the high adventure business. . . . This rollicking yarn will delight readers." -Publishers Weekly"High Wizardry is . . . high entertainment." -Locus"Harry Potter fans will enjoy this third book in Diane Duane’s Wizardry series." -School Library Journal