Lured Into Darkness
Terminax gives a look to the others at the sound of the bell, as if to say, "I knew there'd be an alarm?" Then, whispering to the others he says, "I say we count the number of guards that come a calling, make the illusion disappear like nothing to make the lookout seem crazy, and then cut the rope from the lever that leads to the bell so that we can sneak up on the lookouts after everything's died down. Keep the element of surprise, and maybe make them nervous that the Keep is actually haunted."