setIcon(<minecraft:cobblestone>)

setTitle("Stoneage - How Retro!")

setDescription("Obtain 10 cobblestone and 1 Obsidian")

addParent("heavens:bookchap1/17lava")

setRequiresParents()

setPos(175,60)
drawDirectLines()

criteria1 = addCriteria("hasItemsCobble", "minecraft:inventory_changed")
criteria1.addItem(<minecraft:cobblestone, count:10~>)
criteria2 = addCriteria("hasItemsObsidian", "minecraft:inventory_changed")
criteria2.addItem(<minecraft:obsidian, count:1~>)

addRewardItem(<minecraft:cobblestone, count:400>)
addRewardItem(<chisel:obsidian, count:6>)