Alex took out a thick hide of a beast and lay it on the floor in front of him. He cleared out the translucent feathers from the hide and pulled out a random cauldron before putting the now featherless hide in there.
He then brought out a select few ingredients and placed them all into the cauldron as well, crushed to pastes and powders first.
Alex then filled the entire thing with water and placed it in a low-heat furnace. It would take some time for the hide to soak in the properties of the ingredients that he used and until he was done with them, he couldn't turn it into proper leather.
He focused on making pills in the meantime, letting the thunderous roar fill the skies and the Colony once again. He made about four different pills before he was sent the list of the pills that the Lizard wanted, along with the ingredients to get started with.