The group was in quite an unfortunate predicament. Kronos had filled the room with poisonous smoke while he blocked the only exit. If too much time passed and nothing was done then death would surely be inevitable for all.
Anastasia however had the means to stop Kronos' attack with her unique ability. The only issue was that this was exactly what Kronos desired. If she used her ability, then he could steal it for himself. Not only would he be able to steal the ability but Apollo's toxin would dissipate from his body, sending him back to full strength.
"What will it be, Anastasia?" Taunted Kronos with a grin, "Maybe not everyone here will die immediately but those who are humans will surely die after a single sniff. The only way to survive is to use your ability!"