Apart from the Chamber of Secrets, the silver coin was also dedicated to the third Harry Potter movie adventure, subtitled The Prisoner of Azkaban.

Even the third year of the School of Witchcraft and Wizardry in Hogwarts does not begin for the magician's apprentice Harry Potter in peace and quiet. He learns that the dangerous criminal Sirius Black, the wizard responsible for the death of his parents, has escaped from the infamous prison in Azkaban and is now seeking Harry's life. Fortunately, the boy can rely on his faithful friends to help him discover the truth…

An unusual rectangular coin takes the form of a movie poster. In the vivid colors, which were achieved by coloring technology, there are three inseparable friends - Harry, Ron and Hermione - who are observed by Sirius Black. The trees of the Forbidden Forest are then highlighted in silver relief. Since the island of Niue is the issuer of the coin, its obverse side bears its attributes - the portrait and name of Queen Elizabeth II, the year of issue 2020 and the nominal value of 2 DOLLARS (NZD). The form of the officially licensed mintage was processed by the team of the New Zealand Mint.

Each coin is set in an acrylic frame that allows it to be exposed. Each coin is stored in a special box that protects it.