When the missing of Edward was informed, Efthalia didn't have a choice but to hold back from going back to the Imperial Palace. He had ordered Benjamin to immediately bring the information about what and how it had happened.
As they were retreating from the garden. Benjamin immediately made a move after he sensed something.
"YOUR MAJESTY..." He leaps forward covering his body from letting Efthalia getting a hit. Benjamin took a massive hit on his lower ribs. However, it wasn't the end when another attack proceeded and hit Efthalia's chest. He had pushed Benjamin away from receiving another hit and he took the hit upon himself.
An attack that was silent and invisible until it hit its target.
When the information was delivered to Lucien, Renee, and Prince Calix. Calix immediately dashed away without waiting for anyone. He ran straight to the room where Efthalia lay on the bed surrounded by medical healers from the Imperial Palace.