Leth scrambles for his bow as Adan takes off, nocking, drawing, and releasing as the cultist takes magical flight, aiming by instinct more than sight. The arrow whistles through the night air.
The arrow strikes Adan square in the chest. He wobbles there in the air for a moment, a look of dull surprise on his face, and then his spell fails. Bound by the laws of gravity again, he falls straight down, landing on his back, his head bouncing against the ground with a nauseating sound. Another, smaller impact follows, as his beetle familiar joins him in descent and death.
The false acolyte staggers over to him and throws himself on top of Adan's body, probing at his neck and chest, chanting -- to no avail. The priestess of Erat rushes forward to join in, kneeling over him, as the stricken guards help each other to their feet, trembling in pain from their arcane wounds.
The angry mob from the temple steps swarms over Darux, beating him senseless as Domarc extricates himself from the old woman's grasp and slips away.
From the streets to the west you see approaching torchlight: more guards must be on their way. The black-cloaked man, still floating high overhead, looks down and shakes his head, muttering something inaudible to himself before turning and soaring in a great ascending arc to the north, quickly vanishing from sight.
For now, combat is over. Any party member may act freely.
