Ricardo and Heisenberg stood frozen at where they were.
Of course, they knew what a Queen of Plague meant. Despite Ricardo's low clearance, as a member of one of the three Judiciaries. He still had enough access to the Bestiary dedicated for monsters that were at Emissary-Rank and above.
Ricardo had made sure to remember each and every monster that was written in that particular Bestiary, so he knew what exactly a Queen of Plague was...
"This is bad..." Ricardo's mind was screaming for him to escape as every cell in his body urged his body to move.
But his body's survival effort was to no avail.
The primal fear that overcame his mind and body upon witnessing the Queen of Plague's appearance was just too strong for him to recover from.