"What the-"
V suddenly stopped short in his tracks, blocking Cat's path in the process as well. This made Cat halt and perplexedly stare at V. They were only a few hundred meters from the safe house so there was no point in stopping. She was about to snap at V when she backtracked in her thoughts a little bit.
Something must be wrong. Cat thought to herself as V pressed his forefinger against his lips, indicating that she remained quiet.
The absurdity of V's actions beckoned her to observe her surroundings a little bit more seriously. She scanned everything around the building where Red and the rest of Block-16 were staying. She didn't notice it at first because it was really inconspicuous but once her special lens adjusted to the brightness of the sun and magnified the surroundings a bit closer, she finally saw what made V stop.
A brief glisten of the sun's reflection shone from a few windows and hidden places surrounding the 'safe house'