Who are the people who help with "Let Sleeping Mountains Lie"?

Solution 1:

The following are the 14 people, each of which gives you or is involved in a side-quest at one point or another. If they give multiple quests, it isn't necessary to complete them all to trigger their appearance. However I am unsure of how many quests each one needs to have completed to get them to appear, or if you only need to meet and speak to them.

In addition, whilst some of these characters are involved in the main quest, I'm unsure about whether their respective side-quest needs to be activated/ completed if you have already interacted with them through the main story.

Cid - Engineer met at Hammerhead through the main story

Takka - Chef met at Hammerhead restaurant

Dave - Leader of the Hunters met near Hammerhead through the main story (moves between quests)

Dino - Journalist & jewellery maker met at Galdin Quay through the main story

Coctura - Chef met at Galdin Quay restaurant

Sania - Scientist initially met at Coernix Station - Alstor (moves between quests)

Wiz - Chocobo breeder met at Wiz's Chocobo Outpost

Navyth - Fisherman initially met at a fishing spot in Alstor Slough (moves between quests)

Vyv - Magazine editor met on the Lestallum outlook

Iris - Gladio's sister met in Lestallum through the main quest (later moves to Cape Caem)

Talcott - Young boy met in Lestallum through the main quest (later moves to Cape Caem

Holly - Power plant worker met in Lestallum outside the power plant

Kimya - Runs a shop near the Malmalam Thicket, met through Dave's questline

Ezma - Old woman at at Meldacio Hunter HQ. Need to complete the 8 dungeons that are involved with the Menace Beneath Lucis side-quest in order to speak to her (whilst it isn't necessary to complete the game to activate the "Let Sleeping Mountains Lie" quest, this quest will only trigger once the game is completed)