“Officers,” Sarah said, pointing a gloved finger at the corner of the room. “Take Mrs. Harris outside. She may wait in the consult suite down the hall. She cannot remain in this treatment bay.”

“Excuse me?” Martha’s voice went shrill, the brittle shell of social composure fracturing into sharp shards. “You cannot remove a parent! I have legal custody! I have sole physical custody! I will have your license by sundown—do you know who my attorney is? Daniel put you up to this, didn’t he? Did Daniel call you?”

The officers moved in with practiced, heavy-footed indifference. “Ma’am. Step out. Right now.”

“Don’t touch me! Evan! Evan, don’t you say a word to these people! Evan!”

The heavy door swung shut on her voice. The latch clicked.

The effect on the child was physical. Evan’s small shoulders, which had been hiked up toward his ears in rigid defense, sank half an inch into the thin mattress. His breathing slowed from forty-four to thirty-six, though the effort still sucked the skin between his ribs inward with every gasp.

“Clara,” Sarah said, her voice dropping into the quiet authority of an operating theater. “Cast saw. Now. Marcus, hang the vancomycin and cefepime through the bone needle the second you have access. He’s septic, and he’s closing in on cardiovascular collapse.”

The drill whined as Marcus drove the intraosseous needle into the boy’s shin with a firm, practiced twist. Evan barely whimpered; his nervous system was already too starved of oxygen to register the ache in his bone marrow.

Sarah took the cast saw from Clara’s hand. The oscillating blade buzzed, its blunt teeth designed to vibrate through plaster without cutting soft human skin.

“Evan,” Sarah said, meeting his clouded eyes. “I’m going to make some noise. This saw vibrates, but it isn’t going to cut you. It’s just going to take this tight shell off your arm. You’re safe here. Nobody is going to yell at you.”

The boy looked at the vibrating metal, then up at Clara, who was gently stroking his damp hair away from his forehead.

“Mom did it,” Evan whispered.

Sarah froze for a fraction of a second, her thumb hovering over the saw’s power toggle. Marcus paused with the IV tubing halfway to the port.

“Did what, honey?” Clara asked, her voice like warm water.

“The cast.”

The bay seemed to lose all air.

“At home?” Sarah asked gently.

Evan nodded once, a microscopic tilt of his chin. “In the kitchen. With the green bowl.”

“She made a splint?” Marcus asked, his forehead furrowing. “Like an ace bandage?”

“No,” Evan said, his voice tiny, falling apart under the weight of the confession. “The hard stuff. From the mail.”

Clara glanced across the bed at Sarah, her eyes dark with disbelief. “Maybe… maybe he had a sprain, and she tried to immobilize it? An untreated fracture would have had him screaming for five minutes, let alone weeks.”

“We’ll see in five seconds,” Sarah said, setting her jaw and pressing the oscillating blade into the fiberglass near the wrist.

The smell that escaped the first puncture was an assault that made Marcus physically stumble back half a step. Clara let out a strangled gasp through her mask.

It was the unmistakable, sulfurous rot of gangrenous necrosis.

Sarah did not flinch. She had worked field hospitals in port cities where untreated wounds festered in the hold of cargo ships; she knew the smell of meat that had died while still attached to a living pulse. She worked the blade quickly up the lateral aspect of the forearm, her knuckles grazing the crude, lumpy synthetic resin.

The fiberglass parted with a dry snip-snap.

There was no medical cotton batting beneath it. There was no Webril padding to protect the skin from the exothermic heat of curing fiberglass or the friction of bone against bone.

Martha Harris had lined her child’s arm with torn strips of kitchen dish towels and three layers of household plastic cling wrap.

Sarah used trauma shears to slice through the sodden, grease-stained terry cloth. The fabric had adhered to the child’s flesh like lichen to wet slate. As she peeled the first strip back, Marcus turned his face toward the sink, his throat convulsing.

The boy’s forearm was unrecognizable as human anatomy.

The radius and ulna were visibly displaced, jutting against the skin in an unnatural, S-shaped deformity where the bones had broken completely through their shafts and attempted to heal in an overlapping, jagged mess. But the bone deformity was the least of the catastrophe.

Beneath the impermeable seal of the plastic wrap, the boy’s sweat, sloughed skin, and weeping serum had been trapped for weeks in a dark, feverish incubator. The epidermis had completely detached from the dermis across a six-inch span, leaving gray-black, sloughing craters of dead muscle and exposed tendon. Swelling had choked off the radial and ulnar arteries weeks ago, creating a horrific, chronic compartment syndrome that had starved the tissue until it rotted in place.

And in the deep, purulent crevices between the wrist tendons, tiny, white, rice-shaped bodies were writhing in the light.

Maggots. Dozens of them, feeding on the liquefied flesh.

“Mother of God,” Clara whispered, her eyes brimming with sudden, furious tears.

“Don’t look, Evan,” Sarah commanded softly, her hand instantly shielding the child’s face from his own limb. “Keep your eyes on Clara. Clara, talk to him.”

“Look at me, sweetheart,” Clara choked out, leaning over his eyeline, her voice trembling before she forced it into a soothing cadence. “Tell me about your favorite cartoon. Do you like dogs? I have a big, silly retriever named Barnaby…”

“Get Dr. Kalu from Orthopedics right now,” Sarah said to Marcus, her tone dropping into an icy, dangerous clarity. “Tell him we have an open, contaminated nonunion fracture with full-thickness necrosis, compartment syndrome, and active myiasis. Tell him if he isn’t in this room in four minutes, this boy loses the limb at the shoulder—assuming the bacteremia doesn’t stop his heart first.”