However , they learn from Vivian 's tutor , Doctor Wilander , that there is another legend about Faber John .
Jonathan and Sam are especially concerned about the disruptions in history because it may mean that Time City will also break apart .
They learn from Vivian 's tutor , Doctor Wilander , that there is another legend about Faber John .
Jonathan and Sam are especially concerned about the disruptions in history because it may mean that Time City will also break apart .