Fragments of a rare Merlin manuscript from c. 1300
      (cam.ac.uk)
A fragile 13th century manuscript fragment, hidden in plain sight as the binding of a 16th-century archival register, has been discovered in Cambridge and revealed to contain rare medieval stories of Merlin and King Arthur.
    
  A fragile 13th century manuscript fragment, hidden in plain sight as the binding of a 16th-century archival register, has been discovered in Cambridge and revealed to contain rare medieval stories of Merlin and King Arthur.