Lucas, Luna, Leon, and Arka are currently pondering over the mark that Grandma Maruna left before her death.

Lucas is now able to go home because the evidence they found from the investigation isn't strong enough to detain him. However, Lucas is still under the local police's surveillance, which means Luna and Lucas have to extend their honeymoon in Indonesia.

Moreover, they need to decipher the riddle that Grandma Maruna left behind, especially since Lucas won't leave this place until the real culprit is caught. Because of this, Lucas had to endure the cold of the holding cell for about twenty-four hours.

They are currently examining the patterns they guessed,...