I hope to gather a group to begin Strange Aeons in the near future--and to that end, I wanted to ask the forum's general advice on how to handle the Whisper Out of Time, which despite lots of *really* cool stuff seems to be a notably weak link in an otherwise excellent Adventure Path. Much digital ink has already been spilled on how the conclusion to the explorations of the Mysterium can seem anti-climactic, with little necessarily encouraging the PCs to face the Keeper and receive the final vision--and at that, the question of why Kaklatath had to first direct them to the Mysterium and only then obliquely tell them to find her in Okeno. Even more has been noted about how the assault on Biting Lash's fortress seems less than challenging for a group of 12th level characters, and how all the dealings with gnolls and Okeno in general seem perhaps a bit out of theme.
Whisper Out of Time is also where a potential problem I see with the thread of mystery driving the chase after Lowls could come to a distinct head. To wit, it seems like it would be rather easy for PCs to get ahead of themselves so far as their next destination, or perhaps feel like they're getting the same information over and over. In Thrushmoor Terror, they find a map of Lowl's route at least as far as Katheer, and a note from Miacknian Mun explicitly identifying that Lowls is after the Necronomicon in Katheer's Mysterium. This is also the major revelation from the Mad Poet in the Dreamlands--though the return of the PCs memories and perhaps the revelation that Lowls specifically seeks Neruzavin should keep that from feeling like a waste. But given that Lowls has a notable head start, it seems fairly likely that the PCs might be tempted to try and bypass the boat journey to Cassomir (and thus, the whole wonderful Dreams of the Yellow King) or even go directly to Katheer. And if they do go to Cassomir and search Mun's residence, they could find clues pointing to Biting Lash in Okeno and try to skip ahead there to intercept Lowls.
In short, I feel like I need to get a very solid handle on what clues should come where and what adaptations I need to make to Whisper Out of Time, and I hope the forum can advise me!
Start the Dreamlands sequence the night/rest period before they head off to wherever. As a reward for taking the "three hour tour" in the Dreamlands, perhaps they incidentally undertake a dreaming version of a shadow walk, waking [wherever suitable] on completion.