The Myth Makers NUMBER@1 PERSON@1 NUMBER@2 -- NUMBER@3 The ChaseUnbeknown to the Doctor and PERSON@2 , PERSON@3 took refuge in the ORGANIZATION@1 during the events of `` The Planet of Decision '' and is not discovered by them until `` The MISC@1 '' .

PERSON@4 -LRB- PERSON@5 -RRB- was a companion of the First Doctor .
