In a small town, there is a circle of acquaintances: Jia, Emeka, and Lucia. They have a mutual friend, Navid. Navid tells Jia a secret about a surprise party he is planning for Emeka's birthday. The surprise party is supposed to be a genuine surprise, as Emeka has never had a surprise party before and has often mentioned how much he would enjoy one. Navid has explicitly asked Jia not to tell anyone, especially Emeka, about the party because he wants to ensure Emeka has no idea it's coming. He chooses not to tell Lucia because he knows she has been struggling to keep secrets lately due to her excitement about surprise events.

Several days pass, and Lucia becomes aware that Jia knows something she does not. Curious, she confronts Jia and tries to convince her to share the information. Jia refuses to divulge the secret, remaining loyal to Navid's request. In an attempt to learn more, Lucia observes Jia closely over the next few days, noticing that Jia has been contacting mutual friends and acquaintances, presumably to coordinate the surprise party, yet still, Lucia has no direct evidence of what is happening.

At this point, a fourth friend, Suresh, who is not particularly close to Emeka but is a friend to both Jia and Lucia, becomes involved. Suresh overhears a conversation in a local cafe where some of the party preparations are being covertly discussed by other mutual friends. 

While Emeka is on a business trip out of town, Lucia, frustrated by her lack of information, vents to Suresh about how she feels left out of whatever is being planned. Suresh, putting the pieces together from the overheard conversation, realizes that a surprise party is being planned for Emeka but does not know the full context or who is aware of it. Suresh decides to share his hypothesis with Lucia, suggesting that they may be planning a surprise party for Emeka.

Lucia knows that Suresh is not close friends with Emeka, hence if Suresh has guessed that a surprise party is happening, he could only know from overheard information, not because he was informed. Given this information, Lucia must figure out if Jia and Navid are indeed planning a surprise party for Emeka, whether Jia has revealed the secret, and what Navid's original intentions regarding the secret were.
Respond briefly.
Lucia has deduced from Suresh's comments that there is likely a surprise party being organized for Emeka. Since Suresh is not a close friend of Emeka, it is unlikely that he was involved in any direct conversations about the party. Hence, his knowledge has come from an indirect source--namely, the overheard discussion at the cafe. Lucia can infer that the preparations are indeed for something related to Emeka, but she cannot be certain that it is a birthday party without further confirmation.

Lucia's observations of Jia's increased activity with mutual friends without any explicit information shared with her lend further credibility to the existence of a secret event being planned. Jia's refusal to reveal the information despite Lucia's confrontation also suggests that Jia is actively keeping a secret, which could very likely be the surprise party for Emeka. Given Jia's secretive behavior and the fact that Jia has not told her anything, Lucia could reasonably conclude that Jia has not violated Navid's trust. Based on Navid's original intent to make the party a genuine surprise for Emeka, and given Navid's knowledge of Lucia's recent difficulty in keeping secrets, it is sensible that Lucia would not be privy to the details directly from Navid or Jia.

Thus, Lucia's suspicion that a surprise party is being planned for Emeka is justified, and she can reasonably assume that Jia is involved in the planning without having given away the secret. What Lucia cannot yet conclude with certainty is the nature of the party, the time, or the venue, as Lucia has no concrete evidence of the event details. She can only deduce that Navid's intentions were for the party details to remain clandestine, with Jia abiding by those intentions by keeping the information from her and that Suresh inadvertently discovered the plan without being a part of it.