The Secundus Papyrus by Albert Noyer

"Surgeon, clear that table," Placidia ordered, indicating a bench where workers cut tiles for the mosaics. "I want to see what this holds that is worth a man's life."
Theokritos watched Placidia try to twist off the cover. "It will take a goldworker to open it, Regina."
"No, the fewer who know about this the better." She handed the tube to Getorius. "Surgeon, operate on the lid and open it."
A golden disc which had been soldered on sealed the container's bottom, but the top was closed with an overlapping cap, also soldered around the edge. Getorius poked around among the tools he had pushed aside and selected a tile-cutting chisel. Arcadia held the cylinder, while he scraped the sharp edge along the seam until he had worked the cap free. He pulled it off and found the gold case reinforced by a heavier inner cylinder of copper.
"There's a leather tube inside," he told Placidia, handing her the container.
When she slid the smaller tube out, a sheet wrapped around it came loose.
"Bring that torch closer," she ordered Theokritos, unrolling the page to scan the writing. "This is gibberish. The provenance is yours, Librarian."
Theokritos took the sheet and held it near the light and felt the material. "Papyrus. Old, the ink has turned brown. The writing is Hebrew...no, Aramaic, with some interpolation of Greek words."
"What does that mean?" Placidia asked. "How old?"
"Aramaic was the language of Judea in the time of Christ."
"Four centuries ago," Arcadia remarked. "Are you able to read what it says?"
Theokritos squinted at the words a moment, then read, "I, Simeon bar Jonah, called Petros by the Nazarene, when in the courtyard of the Praetorium, received this from the centurion Gaius Salutus, a secret disciple."
"Simon Peter?" Getorius exclaimed. "The letter was written by Christ's disciple?"
Theokritos ignored the question to continue, "It is the Last Testament of the Christ, but the presence of a centurion speaking to me aroused the curiosity of those around the fire. Fearing for the document's safety, and mine, I thrice denied the Nazarene and fled.'
"'It came to pass as the Lord had prophesied. After I had presided over the Assembly for twenty-three years, I was instructed in a dream to embark on a boat and sail beyond the Pillars of Hercules. Yet it was the power of God that steered the boat. I sailed north for seven days and sighted no land, and then the boat directed itself to an island where no Roman legions had set foot, to the village of Corcaigh. There, by the grace of God, I built a chapel where I placed the Testament until, in God's own time, He will choose to reveal these things."
Stunned, no one reacted. Theokritos stared at the niche as he rolled up the letter.
Renatus was the first to speak. "Peter in Hibernia? Ridiculous. The Apostle died at Rome...was buried in the Vatican Hill necropolis."
"That is the tradition," Theokritos agreed, "but there is no real evidence, no body. And the man cannot be accounted for during those years."
"Peter's chains," Placidia countered. "The chains from his imprisonment have been found. Surely, Archdeacon..." Her voice trailed off in a plea for confirmation.
When Renatus did not reply, Arcadia said, "There must be another document. The testament of Christ the letter mentions."