Jack and the Giant's Bargain (signed)

In Jack and the Giant's Bargain, book two of The Adventures of Jack series, Jack finally begins to feel at home in the village of Lismore after rescuing his little sister from the clutches of a goblin. 
 
Then Jack receives an unexpected request from his best friend’s uncle to help him resolve a problem with his business partner—a partner who is unnaturally tall and who seems to have magical powers. Jack reluctantly agrees to go, but he quickly realizes that it will take all his wits and courage to escape the giant’s bargain…