Read Chapter 5: Broken Mandate

The postcard was waiting under the door of Marcus’s pension room when he returned from the baker’s, still damp from the morning drizzle. He bent, fingers brushing the cheap card stock, and knew before he turned it over who had sent it. The handwriting had not changed in seven years—the same cramped, left-leaning slant Tom had used since school. The same urgency pressed into every stroke.

*Still looking. I found the door. It’s locked. Come find the key. —T.*

Marcus turned the card. The image side was a faded watercolour of a ruined abbey, its remaining tower leaning against grey English sky. A stone path cut through overgrown grass toward an arched doorway. At the bottom, in Tom’s hand, a symbol: a circle quartered by a cross, each quadrant bearing a single dot. The same symbol that had been stamped on the folder the mercenaries had taken in Lyon. The same one Sophie now held captured in a photograph on her phone.

He stood in the narrow hallway for a long moment, the bread going cold in his hand. Then he crossed to the window, pulled the curtain aside. The street below was empty. No black vans. No men in dark coats pretending to read newspapers. For now.

He dialled Sophie. She answered on the second ring, her voice clipped with the alertness of someone who hadn’t slept well. “Tell me you have something.”

“I have something.” He heard the tremble in his own voice and hated it. “It’s from Tom.”

A pause. Then, quieter: “He’s dead, Marcus.”

“He’s not.” He read her the card. When he finished, the silence stretched long enough that he checked the connection.

“You never told me he wrote to you before,” Sophie said finally.

“He didn’t. Seven years, nothing. Not a call, not a text, not a trace. The police closed the file after six months. I kept it open in my head longer than that.” He swallowed. “And then I stopped too, because what else was there to do? But this—this is his hand. I know it.”

Another pause. He could hear her breathing, thinking, weighing her next words. She was a detective first, always. He’d learned that about her in the feverish days since Lyon. The friendship was real, but the professionalism overlaid it like a second skin.

“Bring it to the café,” she said. “The one with the blue awning on Rue des Remparts. Twenty minutes.”

The café was nearly empty, the owner wiping the same spot on the counter with mechanical patience. Sophie sat in the corner with a carafe of coffee already gone cold between her hands. She looked drawn—dark circles under eyes that still cut through him with their focus. He slid the postcard across the table. She didn’t touch it immediately, just studied it, head tilted.

“No postmark,” she said.

“There was. Someone’s scratched it off.”

“That takes effort.” She turned the card over, running a fingertip over Tom’s handwriting. “When did you last hear from him, before this?”

“Seven years ago. He called me from a payphone in Camden. Said he’d found something—he used the same word as here, ‘the door’—and that he had to follow it. I told him he was chasing ghosts. He laughed and said that was the point.” Marcus’s jaw tightened. “I never saw him again.”

Sophie’s gaze lifted to his face and held for a moment. Something shifted in her expression, some private calculation landing. “You said he vanished in London.”

“He did. But the call was routed through a switchboard in Paris. I checked the records later. The police never did.” He tapped the postcard. “Now this. He’s here, Sophie. Somewhere. And he’s been close enough to know where I was.”

She turned the card back to the image side, studying the watercolour with a collector’s eye. “This is Saint Julien-le-Pauvre. The abbey ruin in Lewes, Sussex. Victorian print, commercially available—not rare.” She frowned. “But the symbol he drew isn’t part of the print. He added it. And I’ve seen that precise rendering before.”

“The folder.”

“The folder. Yes.” She pulled her phone from her pocket, swiped through screens until she found a photograph—the Lyon folder’s cover, taken in the crypt before the mercenaries had forced them to flee. She zoomed in on the stamped symbol. The circle, the cross, the four dots. Identical angle, identical proportions. Tom had not approximated the mark from memory. He had reproduced it from a source.

“There’s a code in this,” Sophie said, her finger tracing the symbol on the screen. “The quartered circle is a common Templar cartographic marker—it indicates a crossroads of ley lines or trade routes. The dots are the refinement. Four quadrants, four dots, one per quadrant.”

“A grid reference,” Marcus said.

“Not a simple one. Each dot’s position within its quadrant encodes a letter. But the quadrant itself dictates which alphabet—Celtic, Greek, Roman, Norse.” She looked up at him, finally smiling. It transformed her face. “I’ve seen a variant of this in a fifteenth-century portolan chart held at the Cluny. It was used by Lombard banking families to map collateral vaults across Europe.”

“So Tom wasn’t just showing me the abbey. He was showing me what’s inside it.”

“Or what’s beneath it.” Sophie drained the cold coffee in one gulp. “We need to go to Lewes.”

“I’m suspended from the company. My passport is still clean, but my credit cards are being tracked—I’m fairly sure of it. The moment I use one, someone will know where I am.”

“Then we don’t use yours.” She pulled a worn leather wallet from her jacket. “I have a cousin in Calais. He owes me favours that travel well.” She slid a folded train timetable across the table. “There’s a night ferry from Saint-Malo to Portsmouth. Cash only. We can be in Lewes by tomorrow morning, before anyone thinks to look for us on the south coast.”

Marcus stared at the timetable, then at the postcard, then back at her. The bread from the bakery sat forgotten in his coat pocket. “Why are you doing this? You don’t owe me anything. Your career is on the line if we’re caught.”

Sophie’s smile flickered, something harder passing through it. “Because the men who took that folder in Lyon killed a guard to get it. And they were willing to burn an entire operation across Europe for what’s written in it. Whatever your brother found, it’s big enough to kill for.” She leaned forward. “And because I saw the way you looked at that postcard. You think you left him behind. You haven’t. And I have no intention of letting you lose him again while I can still stand.”

Marcus’s throat tightened. For a moment he wanted to tell her about the postcard from London, the one he’d kept folded in his wallet for years—the one with the same symbol that had been stamped inside the Lyon folder. The connection he hadn’t explained. But the moment passed, swallowed by the weight of what she’d offered.

He pocketed the timetable. “One condition.”

“Name it.”

“When we find Tom—when we find whatever he found—we don’t tell anyone until we understand what it is. No calls to your superiors, no messages to my old handler. The company may be compromised. The police may be too. Until we know who’s on the other side of that ledger, it’s just us.”

Sophie held his gaze, then nodded slowly. “Us.”

“Us,” he echoed.

She checked her watch. “The ferry leaves at twenty-two hundred. We take the regional train to Saint-Malo, avoid the major stations. I’ll send my cousin a signal now—he’ll have a car waiting.” She stood, gathering her coat. “One more thing, Marcus.”

“Yes?”

She looked at him, and for the first time since they’d met, her guard dropped completely. “Your brother didn’t send that postcard to give you a clue,” she said. “He sent it because he thinks you’re the only person alive who can follow it. And that means someone else might soon figure out the same thing.”

She pushed the postcard back across the table. “If he’s alive and someone else learns that mark, he’s in more danger now than he’s been in seven years.”

Marcus slid the card into his inner coat pocket, next to the London postcard he still carried. Two pieces of his brother’s hand, years apart, converging on the same wrecked stone in Sussex.

“Then let’s not make him wait any longer.” He pulled the collar of his coat up against the draft. “Saint-Malo. Tonight.”