In the tranquil village of Anokhi nestled within a magical forest, there is a spherical orb known as the Whispering Globe, which floats above the Town Square. The Whispering Globe has the unique property of echoing any spoken word from one side of the sphere to the exact opposite side, regardless of the distance. The sounds cannot be heard by standing at any other position around the sphere; they are purely directional. One day, during the annual Festival of Echoes, two friends, Jia and Adamma, decide to play a game with the Whispering Globe.

The game involves one person whispering a secret into the Globe from a specific point, and the other trying to hear the secret from the opposite point directly across the sphere's surface. To make the game more challenging, they invite their friend Keoni to participate by continuously and slowly walking around the sphere, dragging his hand along its surface to create a gentle hum that masks the whisper unless the listener is at the precise opposite point.

At the start of the game, Jia stands at the Northernmost point of the sphere to whisper the secret. Adamma starts at the Southernmost point, ready to listen. The Whispering Globe is positioned perfectly so that its poles align with the Earth's magnetic poles. Keoni begins his walk moving from the Easterly direction towards Jia, intending to reach her after completing one full circle around the sphere.

Given the magical property of the Whispering Globe, how can Adamma ensure that she hears Jia's secret while accounting for Keoni's movement? Consider the relative movements and positions of all three friends.
To commence solving this riddle, we must first consider the unique property of the Whispering Globe, which only allows sound to be heard on the exact opposite side of the sphere and that the noise created by Keoni's hand drag is produced continuously as he moves. Adamma must be attentive to these two critical factors throughout the game.

As the game begins, Jia is stationed at the Northernmost point of the Whispering Globe, and Adamma at the Southernmost point, ready to hear the secret. At this initial moment, they are exactly positioned to allow the transmission of the whisper directly from Jia to Adamma due to the Globe's properties. However, the introduction of Keoni's movement complicates the scenario.

Keoni proceeds to move Easterly towards Jia's position. At the same time, Adamma must maintain a position diametrically opposite Jia to intercept the whisper correctly. To stay in the required position, Adamma must move in unison with Keoni, ensuring that Jia, Adamma, and Keoni form a straight line through the center of the sphere at every moment. If Jia remains stationary and Adamma moves directly opposite to Keoni's movement, the line through the center of the Globe will constantly shift. Consequently, Adamma must take into consideration the speed of Keoni's movement and match her own pace so that she remains aligned with Jia on the opposite side of the sphere.

As Keoni draws closer to Jia, the angular separation between his position and Adamma's will decrease. This shifting angle means Adamma must continuously adjust her position to accommodate the change, maintaining her distance from Keoni as he moves. It is crucial that she visualizes the diameter of the sphere that connects Jia and herself, adjusting her movement so that this diameter is always preserved, despite the masking hum created by Keoni's touch.

As the game progresses, Keoni circumnavigates the globe, generating a hum that travels along with him. Since the hum masks the whisper, Adamma has to rely on her precise spatial understanding to remain on the correct vector. It is not enough for her to be opposite Jia in latitude alone; she must also match Keoni's longitude to ensure she is at the exact opposite point on the sphere. If Adamma strays off this path, she will miss the whisper, indicating the importance of her focused spatial reasoning in bypassing the masking effect of Keoni's hand drag.

In essence, Adamma's strategy involves a continuous, slow-paced movement that mirrors Keoni's. Through keen observation and precise alignment with the diametrically opposite point from Jia, Adamma maximizes her chances of hearing the secret. She must adjust her speed and direction attentively to account for Keoni's speed, the masking sound he creates, and her exact opposite positioning in relation to Jia. If Adamma follows these steps with precision, the magical properties of the Whispering Globe will allow her to hear Jia's secret once Keoni completes his circle and she aligns with the perfect point directly across from Jia.