The Academy's basic colour smoke communication symbols;
Red colour Smoke means danger
Green colour Smoke means the coast is now clear
Blue colour Smoke means the point or direction of the danger
Black colour Smoke means the danger has been cleared as level 1 and extreme caution and protocol should be initiated.
When more than one colour smoke is released in the air at the same time, the gravity of the situation should be read in combination.
- The Academy's Sign and Symbols Manual
XANDER'S POV
"Something's wrong with the air," Liam, Xander's classmate and by far, his most nosy and horrible assistant to ever exist said as they patrolled the school grounds.