A tinkerer and fellow student of science eager to learn from you while performing the more dangerous experiments. **Inexperienced.** Once only, when you fail an Arcana or Engineering check, or a check using tools, you may have the inventor intervene. If you do, the check is instead a success, but the inventor is killed in the process. **Seasoned.** Once per day, when you fail an Arcana or Engineering check, or a check using tools, you may reroll that check and must use the new roll. **Expert.** Whenever you craft a magic item, you may have this follower work alongside you. If you do, you craft an additional magic item of the same type using the normal amount of gold costs, making separate checks for each item. No more than one of these followers can work alongside you at a time in this way. *Source: GPG #0 (Artificer article)*