It could not be ignored.

Severus's words of caution made her want to pee herself!! If the roar of one sandworm could sink a city then what about the roars of two sandworms that were fighting for dominance? Wouldn't they take down an entire planet? 

"This is a minimal roar though, the effect has been reduced by a large margin. Still caution is the best way to go because this small earthquake is ignorable but the meaning of the roar is not." Severus added. 

"Call director Adler." she instructed her bracelet AI. 

Elroy at her side was excited meanwhile, "That's the first bellow sis, they do it three times and then the space ship doors open like gigantic wings." 

"Governor.." Adler started to say but she would not allow him to finish his words. 

"Tell them not to do that bellow again or they can turn back right now." she shouted an order. 

"Sis.." Adler changed from governor to sister really quickly. 

"Now." she said sternly.