Vanyel is aware that it's a horribly unhelpful letter, but by the end he's shaking almost too hard to sign his name, and fighting a losing battle against tears. 

Everything hurts so much. He misses Yfandes so, so badly - he's so cold, he just wants to be able to curl up against her, and he can't, and Taver repudiated Tran - Vanyel doesn't have a second, castaway Companion to come back to him - no he can't think about that now - 

Apparently he is instead going to think about Tylendel. It's not clear this is better. 

Cam drops the bio research to spy on Leareth a LOT, see if any of this makes more sense with this background.

Leareth is in a stone room with another woman, dark-skinned and white-haired. They're both staring intently at carefully hand-copied imitations of the printed summoning circles that Cam left in the Heralds' rooms and later retrieved. There are some chalk markings on one wall, which seem to be copied from some bits of the circle.

(There are also glowing illusions of a lot more details hanging out in midair, but Cam's conjuring can't capture this. And Leareth is receiving a steady stream of Mindspeech communications from other staff, reporting on events in Valdemar, which Cam cannot directly observe either.) 

Not useful! Cam combs his written records for stuff about gods.

Leareth has written incredibly vast quantities of notes about gods! It's going to take Cam quite a long time to even skim them! 

The ones less than a century old are mostly in Rethwellani, a language Van speaks and thus spoken by Cam and easily keyword-searchable by Cam's computer. They do, in fact, explicitly reference plans to build a new god, and contain copious details of executing the god-building process. Many of the documents where the 'new god' phrase is referenced go on to consist mostly of intricate magical diagrams, not translatable by Cam, and long sections that almost read like pseudocode in a very high-level programming language.

There are also quite a lot of letters and memos and meeting-agenda notes referencing other gods, largely in the context of how his people need to avoid Their interference. 

Cam can keyword-search almost a thousand years back, the word Leareth used for 'god' has apparently been the Rethwellani one for most of that time period. There's a centuries-long progression of the spell diagrams and pseudocode. There are documents that are mostly mathematical notation, which make almost no sense to Cam. There are a few documents that seem to be Leareth's personal records, complaining about being assassinated by gods in various ways. 

Which gods?

Mostly Vkandis, it sounds like. Vkandis is fond of fire and also holds territories closer to where Leareth has tried to operate; Rethwellan is a centre of scholarship, he's frequently been based there, but it borders on Karse. Anathei is a different god and probably killed Leareth once though he's less confident that was definitely god-shenanigans, it could have been random chance. 

It sounds like the Star-Eyed is less likely to extend Her influence past her physical territories but is also even more effective at preventing him from surviving there for long; Leareth tries to just stay out of the Dhorisha Plains and Pelagirs. He's still been assassinated twice in the last thousand years by Shin'a'in Clanspeople outside the Plains proper. 

He mentions the 'god of Valdemar' - not by any other name - but no assassinations clearly related to this god, though he speculates that the god could have prevented Vkandis-interference on one occasion and presumably chose not to. 

The next time he spies, Leareth seems to be getting some sleep. 

That's his prerogative and in fact a wise idea for mere immortals, but Cam has infinite coffee and a lot of antiparasitics to try on his labful of Velgarth worms!

In the morning, several things happen. 

Savil, who has slept very badly - it's hard to sleep when your Companion is not on speaking terms with you, it turns out, she kept almost falling asleep and then absently reaching for him - nonetheless drags herself out to the Heralds' temple and raises a Gate. 

The Mindhealer from Horn is waiting and ready, and crosses. "Right. Whatever you hauled me over here, it had better be important." 

Shavri, who's been up the entire night and is finally convinced that Tran is neither going to die of shock nor try to kill himself, directs the Mindhealer to him first, and then goes to check on Van. 

Vanyel's stab wound continues to heal cleanly, but that's pretty much the only good news. He failed to get any more sleep for the entire rest of the night after his dream and is a wreck. And Yfandes is still blocking him. 

Shavri sits down beside him. "Van, what in all hells is going on?" 

He gives her an exhausted, despairing look. "Hoped you knew. Companions are - something's wrong..." 

"Well, that much is bloody obvious. No one's seen or heard from Taver all goddamned night. My daughter refused to go to sleep except on my lap." Fortunately she then stayed asleep once Shavri plopped her in an adjacent room, and is still out. "...Van, we grabbed the Mindhealer from Horn. Melody. Do you know her? I think she'd better see you next - you seem -" She doesn't know what to say. 

Shrug. 

Shavri sighs, and puts her head down over the covers of Vanyel's bed.

"Randi doesn't want us to summon Cam back. Since we still don't know what Taver saw, that scared him so much..." 

"- He saw the gods being terrified of Cam." Vanyel shivers, swallows hard, and switches to Mindspeech. :I don't know if that's - something we should care about: He chuckles, bitterly, with a hint of a sob in it. :Except for the part where Vkandis will keep trying to kill us, of course: 

Shavri wishes she had some sort of reassurance to give. She has none. 

"I'm sorry." 

"Trust me. So am I." 

"Do we know if Cam can still get messages? It seems likely - I guess I'd better try writing one, tell him what's going on here and why we're not risking summoning him back..." She drags herself to her feet, patting Vanyel's shoulder. "Hang in there." 

At the Healers' centre station, she scribbles a quick note to Cam, explaining that things in Haven are going really really badly and they wish they knew a way to safely re-summon him but they don't. 

However: 

A half-candlemark after dawn, eight hundred miles north of Haven, Leareth stands in an underground, thoroughly shielded Work Room, and finishes drawing the simpler of the two circles, carefully and neatly in chalk on the floor. 

As soon as Cam feels it he conjures a copy and checks it over in a few formats to make sure it's really free and clear and unbound. He checks the room it's in, and the history of the room in case anyone's been casting creepy spells he can't see in there that he needs to worry about, and he puts his talismans on.