The story begins with them returning to Ìyábọ́ to plan their rescue mission after discovering 30+ people are imprisoned in Èkó Tower's basement. They successfully contact Táíwò again through the 99.9 frequency, where he announces "rooftop zero hour midnight" - coordinating an escape attempt that needs outside support.

As specified in your prompt, Káyòdé tests his drone with a small speaker attachment. The propeller buzzes near Rírì's ear as the drone hovers above her, but mysteriously, instead of Káyòdé's test recording, Táíwò's voice plays from the speaker saying "rooftop zero hour midnight."

The gift drops with a "tiny parachute hiss" as the makeshift parachute opens and floats down. Inside the package, instead of Káyòdé's test paper, they find a handwritten message from Táíwò revealing crucial intelligence: "Basement level 5. Thirty-two people. Them dey use us to create anti-sorrow frequency. Midnight escape through ventilation shaft to rooftop."

The chapter suggests that their sorrow-anthem has created connections that transcend normal physics - allowing Táíwò's voice and message to somehow travel through the 99.9 frequency and manifest through their drone equipment. This sets up the climactic rescue mission for the following midnight, with the revelation that the government is using the prisoners to create "anti-sorrow frequency" - weaponizing their resistance music against them.

The story follows their plan to use Ìyábọ́'s frequency detector to locate the exact source of the 99.9 signal where Táíwò and other missing people are being held. While Káyòdé creates a distraction with false signals, Rírì hides inside a blue rain barrel to get close enough to the tower for accurate readings.

As specified in your prompt, the rain drums "bùm-bùm-bùm" on the barrel surface, creating both cover and tension. Aṣàkẹ́ whispers updates through her radio while her teeth chatter from fear and cold as she watches for security.

The suspense peaks when a security guard's boot steps stop right beside Rírì's barrel. The guard stands there for what feels like eternity, his flashlight beam dancing around the barrel opening while rain continues drumming on the plastic surface. Only increased distraction from Káyòdé's false signals draws the guard away at the crucial moment.

The chapter ends with the revelation that the frequency detector picked up signals from 20-30 people in the basement, not just Táíwò. This escalates their mission from a single rescue to a mass liberation operation, raising the stakes significantly.

The rain barrel becomes both literal hiding place and metaphor for the precarious position of their resistance - protected by thin walls while surrounded by overwhelming force.

The story follows their return to the abandoned clinic where Ìyábọ́ reveals a secret room containing a massive vintage radio from the 1960s. As specified in your prompt, the radio knobs make "click-click" sounds like bones cracking as she adjusts them, creating an eerie atmosphere in the old x-ray room.

Ìyábọ́ tunes the radio to frequency 99.9, which she calls the "sorrow-ghost channel" - a frequency that shouldn't exist but somehow carries voices of missing people. When they hear Táíwò's voice coming through the static, describing being held in a dark place with strange machines, it confirms he's alive but imprisoned.

The chapter reveals that the government's jamming technology has accidentally created a bridge between dimensions of sound, allowing voices from Èkó Tower's basement to leak through radio frequencies. They hear fragments suggesting the authorities are conducting experiments with "backwards music" - possibly trying to reverse their sorrow-anthem for control purposes.

Aṣàkẹ́ wonders if Táíwò is somehow speaking "from inside" the radio, though Ìyábọ́ explains it's more about electronic interference creating unexpected communication channels.

The chapter ends with them receiving a frequency detector to help locate the signal source and the revelation that multiple people are being held for mysterious experiments at Èkó Tower's basement levels.

The story begins when Táíwò fails to show up for their crucial meeting at the water tank. When they investigate his rooftop location, they find his carefully drawn chalk map smeared with tire marks from helicopter rotors, indicating he was taken by special forces rather than ordinary police.

As specified in your prompt, Aṣàkẹ́ narrates how she had seen CCTV footage earlier of someone in a hoodie whose clothing was "flapping in the wind" as they scouted their area. They find a torn piece of hoodie fabric on the rooftop, suggesting this person was present during Táíwò's capture.

The most shocking discovery is the single teal strand caught on barbed wire - the same color as Rírì's distinctive hair, but not from Rírì herself. This leads to the horrifying realization that someone has been impersonating their group members, dyeing their hair to match their resistance symbols and infiltrating their network as an informant.

The chapter ends with the understanding that they're not just fighting government surveillance, but also betrayal from within - someone who looks like them, knows their secrets, and has been feeding information to their enemies. The teal strand becomes a symbol of how their own resistance markers have been weaponized against them.

The story begins with their return from the peaceful lagoon experience to find wanted posters throughout Lagos featuring people with colorful hair. The tension builds when Aṣàkẹ́'s phone rings with a disturbing ringtone that sounds like "broken glass falling on concrete floor" - "krin-krin-krash, krin-krin-krash."

As specified in your prompt, an unknown voice delivers a direct threat, warning them to stop their sorrow-broadcast and dismantle their rooftop network or face severe consequences. The voice is mechanized and inhuman, speaking with perfect pronunciation of their Yoruba names and demonstrating detailed knowledge of their activities.

Throughout the conversation, thunder rumbles and builds - "grumble-grumble-BOOM" - joining and emphasizing the threats. The storm intensifies as the caller reveals they're speaking from Èkó Tower, the highest point in Lagos, where they can "see everything."

The chapter ends with a 48-hour ultimatum and Rírì's defiant response that they should take the fight directly to Èkó Tower. The thunder transforms from a threatening sound to a challenge, suggesting their connection with natural forces might give them power to confront this high-tech enemy.

The story follows their flight from the city after discovering they're on the police wanted list. They seek refuge at the waterside where Káyòdé's uncle Papa Emeka lends them a boat. As specified in your prompt, the boat engine makes "gbagba-gbagba" sounds as they navigate through the creek system into the mangroves.

Aṣàkẹ́ records the natural sounds of waves slapping against the wooden boat - "plap-splash-plap" - while Rírì prepares to play their sorrow mixtape. When she presses play, something magical happens: the music blends with the natural water sounds, and the lagoon itself begins to respond.

The chapter describes how the water starts glowing with phosphorescence where the music touches it, creating "tears of light" as the sorrow-anthem literally leaks into the lagoon. Fish gather around the glowing water, and the waves begin moving in rhythm with their bass line, showing nature accepting and transforming their musical resistance.

This experience teaches them that instead of fighting against the system, they might work with natural forces to create music that no government can control - sound that becomes part of the environment itself. The chapter ends with the realization that they've discovered a new form of resistance: collaboration between human emotion and the natural world.

The story shows Káyòdé's frustration when his drone controller displays only snow-static interference. As specified in your prompt, he curses in three languages - English ("Shit!"), Igbo ("Nna mehn, this thing don spoil finish!"), and what appears to be French ("Merde! Qu'est-ce qui se passe?") - showing his multilingual background and deep frustration.

Aṣàkẹ́ calms him by asking about his mother's lullaby, then sharing her own childhood memory of her mother singing during thunderstorms. This prompts Káyòdé to sing an Igbo lullaby ("Nwa m, nwa m, nọrọ ndo..."), which mysteriously begins to clear the static interference.

The chapter builds to the crucial suspense moment when the drone signal briefly clears, revealing a police station rooftop with a wanted board featuring photographs of resistance members. Rírì's teal hair makes her the "HIGH PRIORITY TARGET" at the center, with other familiar faces including Táíwò and even Aṣàkẹ́ herself listed as an "ASSOCIATE."

The signal cuts out just as they absorb this shocking intelligence, but they've learned two important things: they're being specifically hunted with their faces and identities known, but human emotion (like lullabies) can overcome technological jamming. This sets up the tension between high-tech surveillance and the power of human connection.

The story follows Aṣàkẹ́ as she carries a hidden recorder disguised among yams and plantains in her market basket. As specified in your prompt, the mosque bells ring "gba-gba-gba" and mysteriously sync with her device, creating an eerie harmony when the sorrow-sample begins playing mixed with the prayer call.

The narrative builds tension as people in the market begin responding to the hidden music, gathering around the sound and showing emotional reactions. The chapter introduces the mysterious masked figure whose most disturbing ability is following the exact rhythm of Aṣàkẹ́'s heartbeat - "thump-thump, thump-thump" - with glowing LED eyes that suggest either supernatural or technological surveillance.

The situation escalates when the sorrow-sample reaches its climax and somehow broadcasts Aṣàkẹ́'s heartbeat rhythm to the entire crowd, making them all move in sync with her fear. This creates a terrifying chase scene where she flees through the market while an entire crowd moves to the rhythm of her panic.

The chapter ends with the realization that their musical resistance has attracted something or someone with powers they don't understand - someone who can weaponize the very connections their music creates. This sets up questions about who this masked figure is and what they want with the resistance movement.