Title: Voyage to victory
Description: "A security alert during a school trip to a museum somehow sends Sam and Lisa back in time--and into the clutches of a ferocious eighth-century Viking crew.  To help them return home, readers must solve an intriguing series of puzzles that will jump them to different pages of the book"--P. [4] of cover.
Subjects: Puzzles, Juvenile fiction, Fiction, Time travel, Mystery and detective stories, Children's fiction, Time travel, fiction