Wandering Towers

Yes—Ravenskeep is not a tower but will move along if it’s atop a tower you move; however you may not make a move that would put towers atop Ravenskeep, and if you lift a tower whose move would land on Ravenskeep your turn ends immediately and the tower is not moved (pp. 4–5).

The wizard is dropped into Ravenskeep and stays there until game end, then Ravenskeep advances clockwise to the next raven-shield space or tower top with no wizards (if none it stays), and your turn ends immediately (p. 5).

You must use the full movement value; if the movement would take the wizard past Ravenskeep you cannot choose to stop short to enter it, so only a move that ends on Ravenskeep lets a wizard enter (p. 5).

Whenever you newly imprison one or more wizards by placing a tower over them you may fill one empty potion bottle (no matter how many or whose wizards you imprisoned); if you have no empty bottles you simply imprison them without filling a bottle, and you may not peek under towers (p. 5).

You may cast one magic spell at any time during your turn by spending the required full potion bottles; Piggyback can be cast only when the current player is moving a wizard from a space or tower top where you also have a wizard, forcing that moving wizard to carry your wizard along (you may cast Piggyback on yourself when you move from a space where you have at least two wizards) (pp. 4, 8).