For one moment, Andromeda heard the tune coming back to her and imagined it was an echo, her own tune bouncing back at her from the houses. When it continued, in a much lower register, she gripped the pram's handle tighter. Her brown eyes scanned the gloom and she finally spied a figure in the darkness.
She came to a stop and walked around the side of the pram, prepared to stand between it and the other, sticking her right hand into her pocket and clenching it around her wand. "Who's there?"