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The Black Circle is the fifth book in the The 39 Clues series, where siblings Amy and Dan Cahill are lured to Russia by a cryptic telegram from someone called NRR. While investigating a treasure connected to the last Russian royal family and their parents' deaths, they suspect it's a trap set by the powerful Lucian branch of the family, led by Irina Spasky, and try to stay one step ahead of their rivals to find the clue. The book is a fast-paced adventure that develops the main characters and introduces new plot points about the parents' death and the evolving relationships between the competing Cahill factions.
$4.00