Zhenya listened carefully and marked the next ingredient with a line under it. What if she put the salamander blood in first and it ruined the potion? Well... She didnt want to think about that.

She looked at her ingredients and found both the ones she needed. Then she thought it might be good to put her ingredients in a row, so as she went back down her list she lined them all up.

Now, she needed to alternate drops between both ingredients. She could do that. Picking up the valerian root she put one drop in. Then she picked up the salamander blood and put one drop in. She kept alternating between the two with only one drop each until there were 10 drops of both ingredients. Then she Put them down where they belonged in her organised row of ingredients and waited for professor Lafay to begin with her next ingredient.