(01:37) Tolkien the tinkerer: Palantír added mid-writing 
(04:22) Leaving Isengard 
(06:20) Merry & Gandalf: humour, recovery, and raising the stakes again 
(12:15) Warning notes and the danger winding up 
(18:24) The Palantír confrontation 
(22:05) Aragorn’s shift, kingship emerging 
(29:30) Saruman’s fatal step 
(34:40) Ending Book Three