History Can Be Deadly When You're Time-Traveling Teens on a Mission to 1611! With more at stake than ever before, Jonah and Katherine's struggle to unravel the mysteries of 1611 and the Hudson Passage make Book 4 in Margaret Peterson Haddix's exciting time-travel series a page-turning treat for fans of sci-fi/fantasy fiction! Still reeling from their experiences in Roanoke in 1600, Jonah and Katherine arrive in 1611 only moments before a mutiny on Henry Hudson's ship in the icy waters of James Bay. But things are messed up already: They've lost the real Henry Hudson, and found what seems to be the fabled Northwest Passage — even though they are pretty sure that route doesn't actually exist. Will this new version of history replace the real past? Is this the end of the past as we know it?