SAVANNAH — International bestselling author Tami Hoag will headline the Savannah Book Festival’s spring 2014 event at noon May 8 at The Landings Plantation Club on Skidaway Island.Hoag, who has written more than 30 New York Times bestsellers —including crime thrillers “Deeper Than the Dead” and “Secrets to the Grave” — has more than 30 million books in print. Tickets are $50 each and include lunch and a hardback copy of “The 9th Girl,” Hoag’s most recently published book. Tickets are available by calling Savannah Box Office at 912-525-5050.