Broque Madame's Handiwork
From the Super Mario Wiki
Broque Madame's Handiwork is a level in Blubble Lake in the Bowser Jr.'s Journey mode of Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey. It features the first battle with Broque Madame.
After obtaining the ingredients for Skeletone Formula:D, Bowser Jr., Kamek and Morton visit Broque Madame and ask her to make the Skeletone. However, Broque Madame asks for a massage first, which leads to the battle. She starts the battle off alone, but can use Call for Backup to summon several Scutlets. After the battle is complete, she creates the Skeletone for Bowser Jr., only to have it stolen by Kaley and Dieter, who turn it into Malatone Formula:X using a Malodorous Fibbian's breath.