Albane directs Bannon into the room to attack the statue, and yells "Maloof, retreat!". Assuming the gnome can make it back to where Aldbane is, Aldbane will use the staff of healing on him.
Aldbane and Bannon stand on either side of the 10' corridor, peering in as Maloof approaches the statue. They can quickly enter the room in the event of an attack or other trouble.
Adlbane agrees with finding the source of the flute sounds. Assuming we proceed north and west along the main corridor, he and Bannon fall into the marching order.