You are looking at the HTML representation of the XML format.
HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the XML format, set format=xml.
See the complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query-continue>
    <allredirects garcontinue="Deer_Meat" />
  </query-continue>
  <query>
    <pages>
      <page pageid="4047" ns="0" title="Black Orc Cryomancer" />
      <page pageid="3371" ns="0" title="Blade of Hypaepa" />
      <page pageid="324" ns="0" title="Bodyguard and Chief Bodyguard" />
      <page pageid="3377" ns="0" title="Bracelet of Love" />
      <page pageid="193" ns="0" title="Castle Darksparrow" />
      <page pageid="2953" ns="0" title="Catface" />
      <page pageid="91" ns="0" title="Cloud City" />
      <page pageid="3759" ns="0" title="Coldmonger Caverns" />
      <page pageid="182" ns="0" title="Concealing Petal Armor" />
      <page pageid="2507" ns="0" title="Dark Alley - Pawn Dealer" />
    </pages>
  </query>
</api>