In a mystical land, Zephyrina the sorceress has a peculiar mirror known as the "Whispering Glass." This mirror has the unique property that it reflects not the true appearance of those who look into it, but their innermost secrets in the form of symbolic imagery. The more someone stares into the mirror, the more revealing and complex the symbols become. Three separate adventurous souls - Jiro from the East, Aamina from the South, and Tuukka from the North - each with a secret they hold dear, come across this mirror on their quests. 

Jiro, born under the crimson moon, possesses the ability to talk to animals, a secret he has kept hidden for fear of being used for it. He seeks a vision within the mirror that might hint at how he could protect this ability. 

Aamina has an enchanted map that always shows the location of hidden treasures but becomes invisible to any who speak of it. She wishes to understand from the Whispering Glass if there's more to her artifact than meets the eye.

Tuukka, a sage of ice, commands a staff that can unveil illusions and reveal truth, yet he knows there's an illusion about his own life that his staff cannot unravel. He looks to the mirror for a clue.

Each adventurer, on realizing the mirror's power, decides to look into the mirror in turn to seek their answers. They decide to do so with a plan; first Jiro will look into the mirror while Aamina and Tuukka have their backs turned. Next, Aamina will look as Jiro turns away and Tuukka keeps his back to the mirror. Lastly, Tuukka will have his turn while both Jiro and Aamina avert their gazes.

What will each adventurer see in the mirror based on their secrets and intentions, and will they be able to keep their secrets safe from the others given the mirror's property?
When Jiro approaches the Whispering Glass, he holds within him the secret of conversing with animals, a power of significant rarity. Given the mirror's power to reflect symbolic imagery of one's innermost secrets, the scenario will unfold in layers for each observer.

As Jiro gazes into the mirror, the reflective imagery will slowly materialize into symbols that represent his ability to communicate with animals. This could be in the form of animals assembling in a harmonious congregation around him or a visual of multiple speech bubbles emanating from animals directed toward him. The complexity and clarity of this image would increase the longer he looks into the mirror, but since Aamina and Tuukka are respecting the pact and have their backs turned, Jiro's secret remains safe from their eyes. For Jiro, the mirror might also hint at the means of protecting his ability by showing him symbolic defenses or barriers, but the exact nature of these symbols depends on the knowledge and intuition that Jiro himself brings to the mirror.

When it is Aamina's turn to peer into the Whispering Glass, her cherished secret is the enchanted map that reveals hidden treasures yet becomes invisible when spoken about. As she faces the mirror, initially rather nondescript symbols and images will start to take form, avoiding immediate recognition by anyone else. These could be symbols of treasure chests, maps, and perhaps even glyphs for silence or secrecy. The symbols are less likely to give away the operative condition of her secret (i.e., that the map disappears when spoken about), as this is not a visual aspect, but more of a rule-bound characteristic. Only Aamina, knowing her secret, could possibly recognize the implications of such symbols. Since Jiro and Tuukka are not looking at the mirror during her gaze, they remain oblivious to Aamina's reflection of secrets.

Tuukka, the sage of ice, seeks insight into the elusive illusion of his life that his own staff cannot reveal. When Tuukka's gaze falls upon the mirror, the imagery he beholds will be deeply personal and abstract, reflecting the unknown illusion he is trying to understand. His reflection might consist of complex, intertwined symbols such as fractured mirrors, veils, or even representations of himself with contradictory elements. These symbols will gradually form into a narrative depiction that only Tuukka might begin to interpret, and given the depth of contemplation required, the images would remain inscrutable to anyone who might sneak a glance. However, given the agreement, Aamina and Jiro's eyes are directed away, protecting the intimate revelation from their view.

Each adventurer uses the Whispering Glass in isolation, respecting the others' privacy. Consequently, even though the mirror reveals the depth of their secrets in imagery, the agreement and turn-based viewing ensure that nobody sees the others' secrets. They only witness the unfolding of their own subconscious, communicated through the magical, reflective surface of the Whispering Glass. Therefore, each adventurer's secrets remain safeguarded, protected not just by the nature of the mirror's cryptic symbolism, but also by the trust and the process they've agreed upon.