This is Lane. I’ve gone through the rhythm of Chapter 07. The prose has the right kind of "swamp-rot" density—heavy, humid, and appropriately paced for a man losing a fight with the land. 

The voice differentiation is strong, particularly the contrast between David’s "analog regression" and the "corporate shrapnel" he still carries in his vocabulary.

### 1. STRENGTHS TO PRESERVE
*   **The "Sensory Load":** The description of the Florida interior as "thick as an organic soup and tasting of prehistoric river marl" perfectly establishes the environmental antagonist.
*   **Arthur’s Legacy Logic:** "The table was bolted to the floor. The shelves were deep and lipped... the architecture of a man who expected a storm every day of his life." This does double duty: character builds a dead man while establishing the stakes of the setting.
*   **Tactile Failure:** The fire ant sequence is visceral. "Electric shock lanced through his thumb... swarmed with an algorithmic precision."
*   **Voice Signatures:**
    *   **David:** YES. His use of cardinal directions and the dropping of the 'g' (runnin', headin') as he fatigues aligns perfectly with the "regression" arc.
    *   **Sarah:** YES. Her "Status Code" and "Error 404" tics are distinct and provide the necessary bridge to the tech-world they fled.
    *   **Marcus (Reference):** YES. David mimicking Marcus’s "Diagnostic: System failure" reinforces the character's internal struggle with his former life.

### 2. MUST-FIX — CONTINUITY
*   **The Truck Narrative:** In the middle of the chapter, David is at the "diesel pump" which is described as a stationary object ("old diesel pump sat... wired to the cabin's roof"). However, David then "climbed into the cab of the dually." Later, he refers to the "fuel line" of the "machine" being clogged with sand. It is unclear if he is fixing a stationary generator/pump or the Dodge dually truck to power something else.
    *   *Correction:* Clarify if the pump is an engine-driven standalone unit or if he is using the truck's PTO/battery to jumpstart a system. If it's the truck engine he's fixing, ensure the transition from "the pump" to "the dually" is explicit.
*   **Sarah's Location:** The text states Sarah is "still asleep" in the cabin, then later David "saw Sarah before she saw him... standin' near the water." There is no transitional beat of her waking up or moving out to the riverbank.
    *   *Correction:* Add a brief line or visual cue of the cabin door opening or Sarah moving toward the river while David is working on the pump/truck.

### 3. MUST-FIX — CLARITY
*   **The Ending Imagery:** "Something heavy rolled through the grass—treads, not boots."
    *   *Context:* The earlier mention of "tread-marks" or "tire tracks" needs more weight if this is the cliffhanger. 
    *   *Fix:* ORIGINAL: "He thought of the tire tracks he’d seen earlier." → SUGGESTED: "He thought of the deep, notched ruts he’d found near the perimeter—marks too heavy for a civilian truck, too precise for the mud." (This clarifies why the "treads" at the end are a specific threat.)

### 4. OPTIONAL SUGGESTIONS
*   **Rhythm/Economy:** "The air didn’t just sit; it occupied the room..." 
    *   *Suggestion:* ORIGINAL: "...thick as an organic soup and tasting of prehistoric river marl." → SUGGESTED: "...thick as soup, tasting of prehistoric river marl." 
    *   *Rationale:* "Organic" is redundant; marl is by definition organic/geologic. Cutting "an organic" tightens the punch.
*   **Dialogue Tightening:** "The pump?" she asked. "Runnin'," David said, droppin' the 'g' without thinkin'.
    *   *Suggestion:* Remove the meta-commentary "droppin' the 'g' without thinkin'." 
    *   *Rationale:* Show, don't tell. The reader already reads the 'g' as dropped. Let the voice speak for itself without the authorial nudge.

### 5. FORBIDDEN CHANGES / NON-GOALS
*   **Do NOT "correct" David’s cardinal directions.** He shouldn't say "left" or "right" when navigating the property. "North-by-Northwest" is a vital tonal anchor.
*   **Do NOT smooth out Sarah's tech-jargon.** Phrases like "high burn rate" and "Error 404" are intentional symptoms of her displacement.
*   **Do NOT remove the "Hmph" or "Grunted" markers.** These are direct echoes of Arthur (the ghost mentor) and are necessary for the "Analog Regression" arc.

### 6. VERDICT

**REVISE.** 
The chapter is atmospheric and tonally on-point, but the continuity regarding the "pump" vs. "dually" and Sarah’s sudden teleportation from the bed to the riverbank requires a quick structural pass to ensure the reader’s mental map remains intact.