Zaks' tower
Inside the tower, narrow ledges climb towards Zaks at the top, bouncing balls rain down, and the wizard himself fires.
Nudge 1Where to look
The ledges are just one jump apart: climb steadily, and wait on a ledge for the balls to pass rather than jumping into them.
Nudge 2A stronger push
At the top, Zaks fires a bolt along the level of the highest ledges. There's a mirror at the other end.
What you needOther problems to solve first
Solve these first (each opens its own page, no answers on the way):
Show the solutionThe whole answer, with a video
Climb ledge by ledge, timing jumps between the falling balls. At the top, keep out of the bolt's line: it flies to the mirror, bounces back and hits Zaks himself, who breaks to pieces. Then walk to the top: Daisy is free.