SD-03 then rolled out of the bunker and began to climb a series of ramps and staircases the Sixers had built onto the castle’s outer walls to provide access to the upper levels. Along the way, the droid rolled through several security checkpoints. Each time, robotic sentries scanned its security clearance and found that the droid was allowed to go anywhere it damn well pleased. When SD-03 reached Castle Anorak’s uppermost level, it rolled out onto a large observation platform located there.