Nerdanel is not intending on finding out! She shoots between them, using one of their precious potions to propel her faster, taunting them into wheeling about and following her. She'll duck and dodge and throw the occasional pebble until Yugi waves at her and only then will she take a deep breath and try to Sing them to sleep.

(she's not her son, but every mother knows a basic lullaby, after all. Hopefully they aren't so mad as to not respond to it)