The 39 clues #5: the black circle [with 6 game cards] - Patrick Carman

Amy and Dan have been found unharmed! But perhaps not for long--the ruthless Irina Spasky is right on their tail.

Book 5 takes Dan and Amy on their most dangerous quest yet, one that brings them face to face with the only force capable of scaring the vicious Lucians: the Madrigals.

The highly anticipated Book Five of the #1 bestselling The 39 Clues series.

A strange telegram lures fourteen-year-old Amy Cahill and her younger brother, Dan, deep into Russia and away from the only trustworthy adult they know.

Signed with the initials NRR, the telegram launches a race to uncover a treasure stolen by the Nazis and the truth about the murder of the last Russian royal family.

All too soon, the treasure hunt starts to smell like a Lucian trap.

But the bait might just be irresistible .

what will Amy and Dan risk to find out what really happened on the night their parents died?.