The Letters Between Antium and Rome
Quo VadisThis subplot uses the correspondence between Vinicius and Petronius to show their diverging philosophies and enduring attachment.
increasing
Bearing strength in each event
decreasing
Petronius Writes from Antium

Petronius Writes from Antium
A teasing mentor
Petronius urges Vinicius to enjoy love and life, assuming that sensual pleasure can heal his distress.
Distance reveals difference
Vinicius’s response shows that his search has become spiritual as well as romantic.
Vinicius Explains the Christians

Vinicius Explains the Christians
A report of change
Vinicius tells Petronius that Christians treated him with exceptional care and that he has begun to change his conduct.
A question without easy answer
He cannot reconcile Christian equality with Roman hierarchy, yet can no longer dismiss the faith as foolishness.
Petronius Answers Honestly

Petronius Answers Honestly
Friendship without conversion
Petronius admires Vinicius’s happiness but explains that he cannot give up beauty, comfort, and self-indulgence.
A sincere limit
His refusal is not simple hostility; it is an honest admission that the Christian discipline does not fit the life he chose.
The News of Rescue

The News of Rescue
Joy shared at a distance
Vinicius tells Petronius that Lygia has been spared and that Christ saved her.
Different explanations remain
Petronius credits human strength and public feeling, while Vinicius sees divine mercy, yet their affection persists.
The Final Correspondence

The Final Correspondence
An invitation to a new life
Vinicius invites Petronius to Sicily and describes a household shaped by Christian love.
A farewell in return
Petronius declines conversion while expressing affection and preparing to die on his own terms.
After Vinicius remains in Rome to search for Lygia
During Vinicius’s stay among the Christians
After reading Vinicius’s account of conversion
After Lygia survives the arena
After Petronius learns Nero intends to kill him