You can substantially speed up certain processes in the Town by using the Prophet and Second Craftsman items.

The Prophet allows you to learn two pieces of Knowledge simultaneously, while the Second Craftsman gives you the ability to construct or upgrade two buildings at once. You can upgrade any Knowledge or building instantly for Gold.

The Prophet and Second Craftsman boosts vary in duration: 1 day, 7 days, and 30 days. They can be purchased as part of Bank offers and received as a reward for visiting the game daily.

You can activate the Prophet boost in the Boosts window, Development tab, Hire Prophet category. The Second Craftsman is activated in the same tab, but in the Hire Second Craftsman category.

Important! If you apply several boosts, their durations are added together. So, if you activate the Prophet, 24 Hours boost, and then the Prophet, 7 Days boost, the bonus will be active for 8 days.