They did not dare touch anything there without permission. Fortunately for them, the inner garden has an herb section where all the things that they need are located. The herbs are even labeled which made them easy to get. They did not break into sweat as they just waltz inside and collected the things that they needed.
The three got all the herbs that they needed and met up with Baba in front of the inner garden. They saw her there stirring a pot of boiling blood that were squeezed out from the Heart of Tarasque. They did not know how she did that initially, but they soon saw the process when Baba judged that the blood was not enough.
Using the Tears of a Mermaid, Baba will put one drop of tear towards the beating Heart of Tarasque. This is when they realized that Baba is not a normal old lady that is sweet and kind. She lifted the heavy heart as if it was nothing.
