Anna hits send on her pre-recorded pulse message to Saul:

"Saul, this is Anna of the Prince's Hounds. We need you to come in for questioning. Please acknowledge."
The Ghoul makes it to the bottom of the steps, still immediately unaware of the presence of the surrounding ambush, with The Prince of Oakland just a few steps behind him.

Saul pauses a few stairs higher, when his phone beeps. He retrieves the phone, looks at it for a moment (white electronic light casting long shadows over his face), then simply pockets the phone again. Before he starts to descend he says, "Let's get going."

(OOC: Now the Ghoul and The Prince are close enough to start spotting Rachel, who is not truly invisible. Her obfuscate helps her not stick out, but since she should not be in the house, I am going to ask that she rolls Wits + Stealth + Obfuscate, as a contested action against the Ghoul and The Prince's perception... unless someone is going to act first.)