Straizo vs. Joseph, Part 1 (Chapter)

Straizo's Ambition is the forty-eighth chapter of the JoJo's Bizarre Adventure manga. It is also the fourth chapter of Part II: Battle Tendency.

Summary
Straizo believes that the man in the pillar is the creator of the Stone Mask, and that he must be ancient. Speedwagon, contrary to what everyone believes, is still alive and asks Straizo why he did this. Straizo says he wants the power of the stone mask because he envied the eternal youth and powers of Dio Brando. After putting on the stone mask, he sets out to find Joseph Joestar in New York, in order to kill the last witnesses who are aware of the power of the Stone Mask.