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One of the most prominent themes in chapter 19 is the illusion that someone or something that appears to be good is actually bad. For example, the Department of Homeland Security, a government agency that appears to be good on the surface, have gassed and beaten protestors and tortured people who were in San Francisco at the time of the Bay Bridge bombing. Masha, an undercover DHS agent, seemed to be on Marcus's side. However, her actions, most notably threatening to delete the photo of Darryl with Marcus and Van, made Marcus realize that he needed to stay in San Francisco and fight.

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In the beginning of the chapter, Marcus arrives at the Civic Center early in the morning to start setting up for the Vampmob.

Once the Vampmob began, the DHS began arriving in helicopters and trucks, telling the attending Xnetters to "...disperse immediately."

When Marcus breaks out of the surging crowd, he finds Masha and they begin their plan to escape San Francisco.

After finding an 18-wheel moving truck that would be en route to Los Angeles, Marcus and Masha get in.

When Masha shows that she isn't necessarily on Marcus's side, Marcus makes a run for it and escapes the b

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Marcus - This 17-year-old high school student goes to a LARP event that he set up as a distraction in order to escape the city of San Francisco.

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Masha - Masha is an undercover DHS agent who has agreed to work with Marcus in order to get out of the city. Her motive, however, may not be for Marcus's benefit.

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Ange - Ange is Marcus's love interest and she intends on escaping the city with him. However, the subsequent events get in the way of this.

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Charles - Charles is one of Marcus's classmates. He has always had a distaste for him and attempts to get him busted in this chapter.

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"Darryl. Stuck on Treasure Island, his side stitched up, taken out of his cell for endless rounds of questioning about the terrorists."
-Marcus, page 319

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The beginning of Chapter 19 takes place at Civic Center in San Francisco. The chapter finishes with Masha and Marcus inside of a moving truck, where Marcus will make an important decision.

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In the chapters leading up to this one, Marcus uses the Xnet on his Xbox Universal to organize a LARP event. This event would give him the distraction he needed to make it out of San Francisco with his girlfriend, Ange. Later, Masha uses her phone in order to find the photo of Darryl Glover with Marcus Yallow and his friend Van Pak.

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"That was when I knew I couldn't run. That was when I knew I had to stay and fight."
-Marcus, page 319

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San Francisco has historically been a hotbed of political activism and the home of many political and social movements. As Marcus is a political activist and a voice for change in this novel, the setting of San Francisco makes much sense.

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In this chapter, Marcus arrives at the Vampmob, which he will use as a distraction in order to sneak out of San Francisco with undercover DHS agent Masha.

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In Chapter 19, Marcus (the narrator) uses several terms and utilizes vocabulary specific to his locale and his niche. For example, the term Xnet refers to the underground networking used by Marcus. The BART is a local acronym referring to Bay Area Rapid Transit, a monorail system in San Francisco. The Vampmob is Marcus's name for a LARP (live-action role play) event that he set up as a distraction in order to sneak out of the city. In addition to these terms and others like it, Cory Doctorow utilizes short and to-the-point sentences in his novel.

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The Great Escape