Exigency: The Old Guard

Serana can't see any signs of the party being monitored. Yet.

Pudge gets an odd, pulsating sensation at the back of his mind. A powerful telepath is somewhere in the building and now they're reaching out, searching for another psion's presence.

Wilhelm briefly staggers from the force, but his mind holds. Without preparation the huge flux of psi could've easily plunged him into unconsciousness... or worse. The unseen psion isn't playing around. Mercifully they picked Wilhelm as the focal point of their powers, but even then the shockwave was palpable to the rest of the party.

Having failed to immobilise the team from a comfortable distance, the Council-trained psion's next move seems obvious: they will either give chase themselves or order someone else to make the pursuit. They will not be happy that their abilities were resisted and they will be very eager to see exactly who they're dealing with.

As Darghibous suspected, the drone cab is in the process of disembarking, already rising from the ground. Someone at the embassy must have recalled it.

Pudge can cancel the recall with a DC11 Tech+KNO check: but be warned! Doing so will make it easier for the pursuers to maintain a trace. But if someone wants to physically stop/stall the drone cab, e.g. through brute force or jumping aboard it, that'd be a DC16 check.

Wilhelm's scythe carves off an entire antigrav node and the drone cab falls to earth abruptly. Its AI mutters something about voiding the warranty but it's hard to make out over the lingering, reverberating clang from its impact.

Pudge will have no difficulty getting the cab to fly again, but all of its power output will have to be redirected to the remaining nodes: which isn't tenable. The engine will eventually burn itself out.