ISBN-13: 9781461082934 / Angielski / Miękka / 2011 / 96 str.
ISBN-13: 9781461082934 / Angielski / Miękka / 2011 / 96 str.
In this third installment of your adventures as a spy, you will realize the potential of your diamond ring. While single-handedly rescuing your dad from imminent death for being a traitor and clearing his name, you uncover secrets very few people know about. Using your powerful math skills in Algebra or Geometry, you solve the mysteries and get your dad home safe