Missing May by Cynthia Rylant (1992, Hardcover).

*book is an Ex library book, has school stamp and check out card inside. Pages are in great condition, book is yellowed with age *

This critically acclaimed winner of the Newbery Medal and the Boston Globe-Horn Book Award joins Scholastic's paperback line.When May dies suddenly while gardening, Summer assumes she'll never see her beloved aunt again. But then Summer's Uncle Ob claims that May is on her way back--she has sent a sign from the spirit world.Summer isn't sure she believes in the spirit world, but her quirky classmate Cletus Underwood--who befriends Ob during his time of mourning--does. So at Cletus' suggestion, Ob and Summer (with Cletus in tow) set off in search of Miriam B. Young, Small Medium at Large, whom they hope will explain May's departure and confirm her possible return.