Learn the Secret
After completing the first dungeon, Spirit's Grave, a Ghini will appear three screens north of the dungeon at the northeast corner of the Yoll Graveyard. Speak to the ghost and he'll tell you a secret. He mentions that in Holodrum's Graveyard, there is one grave that has no flowers. There is somebody inside of this grave and if Link tells it a secret, something good will happen.
Tell the Secret
In Holodrum, head to the Holodrum Graveyard, located at the southwest corner of the map, where the Explorer's Crypt dungeon was found. One screen south of the entrance to the dungeon, there are 8 graves. During the Spring time, there are flowers right in front of 7 of the graves. The grave that is second from the left on the top row does not have any flowers. Use your Shovel and dig the spot directly above the grave to find a secret staircase. Inside, speak with the Ghini and tell it the secret; the Ghini will then give Link a test. If Link does well, the Ghini will increase Link's strength.
Thirteen Ghini's will appear in the room. Some are Red and some are Blue. After they disappear, the Ghini will ask Link if there were more Red or Blues ones. If Link answers correctly, he will pass to the next round. The third and final round will have 6 Ghinis that are one color and 7 that are the other. Furthermore, they will only appear for a brief moment. After successfully guessing all three rounds, the Ghini will reward Link with a Heart Container.
Link receives a full Heart Container as a reward. In the base game of both Oracle of Ages and Oracle of Seasons, Link can only acquire 14 full heart containers. However, with this secret, as well as the additional heart container Link acquires at the start of a Linked Game, Link is able to acquire a total of 16 heart containers.
After completing the mini-game, the Ghini will then tell Link a secret that he can take back to Labrynna. Back in Oracle of Ages, return to the female Maku Tree and climb inside. Speak with Farore and tell her the secret. A treasure chest will appear that contains the Heart Container.
Dig up the secret staircase in the Holodrum Graveyard
Tell the secret to the Holodrum Graveyard Ghini
Play the Mini-Game to get the Heart Container
Enter the female Maku Tree in Oracle of Ages
Tell the secret to Farore to get the Heart Container
- ↑ "Hello there! Do you believe what you see? If you do, I'll teach you something! Do you? ›Yes ›No" — Yoll Graveyard Ghini, Oracle of Ages.
- ↑ "In Holodrum's graveyard, there is but one grave with no flowers. If you tell the one inside the grave the secret I am about to tell you, something good will happen, understand? ›Yes ›No" — Yoll Graveyard Ghini, Oracle of Ages.
- ↑ "What? What? An introduction from someone in Labrynna? You seem sure of your judgment! So why not take my test? If you do well, I'll increase your strength! I don't undertand..." — Holodrum Graveyard Ghini, Oracle of Seasons.
- ↑ "Then let me explain. Red and blue copies of me will appear. Pay close attention. After they vanish, I will ask you which there were more of, red or blue. Answer correctly to pass. However, there are three tests in all, so don't let passing one go to your head. You got it? :›Yes ›No" — Holodrum Graveyard Ghini, Oracle of Seasons.
- ↑ "Now then, which were there more of, red or blue? :›Red ›Blue" — Holodrum Graveyard Ghini, Oracle of Seasons.
- ↑ "That's right! Now on we go!" — Holodrum Graveyard Ghini, Oracle of Seasons.
- ↑ "That's right! That's the end of the test, and the results show that you have a sharp eye! As promised, I shall make you stronger! Have a Heart Container!" — Holodrum Graveyard Ghini, Oracle of Seasons.
- ↑ "I'll teach you a secret so you can get a Heart Container in Labrynna, too. Link Got it? :›Yes ›No" — Holodrum Graveyard Ghini, Oracle of Seasons.