King Herz Der Sonne's Journal

King Herz Der Sonne's Journal is the journal that had belonged to one of Corona's past kings, King Herz Der Sonne, in Tangled: The Series.

The journal holds Corona's secrets that were made in Der Sonne's time, as well as acts as a map to the underground tunnel system, that were placed under the kingdom during its time of war with Saporia. It also holds the king's feelings of love towards the leader of Saporia, General Shampanier. When she saw his confusion in the journal, during their battle, Shampanier realized that she felt the same way towards the King of Corona. Which is why it plays a part in a Coronain holiday, that calibrates the end of the war and the merging of the two kingdoms, when Der Sonne and Shampanier married each other, known as the "Day of Hearts". Where couples would write their names in the journal, when it is displayed to the public.

Because of the secretes that it holds the Separatists of Saporia had tried to get their hands on it. One of the separatist members, Andrew had used the Day of Hearts holiday as an opportunity to steal it, by building up a fake relationship with Cassandra; who was onto him from the start. Despite getting his hands on it and was on his way back to Saporia, so they could use the kingdom's secrets to plan an attack on Corona, Cassandra, Rapunzel and Eugene stopped him; and brought the journal back to the castle.

When Rapunzel and Varian agreed to steal the Sun drop flower, in "The Alchemist Returns", they used the map within the journal to help them find their way around the Der Sonne's tunnels. So they could brake into the volt, that the flower is held in, from beneath.

Trivia

 * In the opening of "Under Raps", the journal was featured as a popup book as it told the origin story of the Day of Hearts and how love ended the war between Corona and Saporia.