On the pier.
"This box contains a trace of spell power I've planted. As soon as it's opened, it will transform into a raven and fly back to me, and I'll know you've picked up the person. The strategic deployment will begin, and we'll tear open a route."
Fen carefully passed a palm-sized wax-sealed wooden box to Liszt.
"Damn, that's awesome, let me take a look."
Shadi reached out to grab it.
"You're too curious, Swan, keep an eye on him. Don't let him touch the box."
Fen instructed.
Swan nodded and, to be safe, added, "If something goes wrong when picking up the person and we get cornered, relying solely on this is not reliable."