The Unseen World

From the New York Times bestselling author of Long Bright River : The moving story of a daughter’s quest to discover the truth about her beloved father’s hidden past. Ada Sibelius is raised by David, her brilliant, eccentric, socially inept single father, who directs a computer science lab in 1980s-era Boston. Home-schooled, Ada accompanies David to work every day; by twelve, she is a painfully shy prodigy. The lab begins to gain acclaim at the same time that David’s mysterious history comes int