Trader Sonia:
You need Mandragora Essence? I do not know who you have come on behalf of, but if you need Mandragora Essence of the finest quality, you have come to the right person.
I can prepare Mandragora Essence for you, but first you must bring me forty Mandragora Roots. You can easily obtain Mandragora Roots that have a red tint.
However, rarely, there are also white roots. If I prepare the essence with only the white roots, I can obtain a clear, transparent fluid that is richer and stronger in taste compared to the red. If you bring forty White Mandragora Roots, I can make you clear Mandragora Essence.
Since you are ignorant, I assume you do not know which part of the mandragora to collect. Take this illustrated book of botany to refer to when you gather the roots.