Tara Dairman

"Twelve-year-old Henna loves living with her two papas and cultivating her beloved plants on the tiny island of Earth's End--until Papa Niall grows seriously ill. Now Henna is determined to find a legendary, long-extinct plant with miraculous healing powers, even though the search means journeying all the way to St. Basil's Conservatory, a botanical boarding school rumored to house seeds of every plant ever grown. At St. Basil's, Henna is surrounded...