    one. They perished anyway.</p>
  <p> DATA<br>
    (studying his own<br>
    tricorder)<br>
    Were those caves laced with<br>
    kelbonite or fistrium?</p>
  <p> DOCTOR MARR<br>
    The tunnels on Forlat Three had<br>
    strong deposits of kelbonite, yes.</p>
  <p> DATA<br>
    Then perhaps it is the combination<br>
    of the two metals which prevented<br>
    the Entity --</p>
  <p> She whirls on him, feelings pouring over.</p>
  <p> DOCTOR MARR<br>
    Or maybe it was you.</p>
  <p