Some deep instinct told me that the moment in the hall had been the time, the right moment.

It's probably a deeper instinct than I could ever understand.

Most dogs leave their feet when they attack, some deep instinct forcing them to go for the throat.

Yet despite the knowledge there was some deep instinct in him that denied its truth.

Some deep preternatural instinct told me that I had reached the right place.

He was following a deeper instinct, perhaps not quite his own.

I shook my head from deep instinct, without thinking it out.

It's nonsense, of course, but it must correspond to some deep instinct.

Prompted by deep instinct, he felt down between his legs.

Some deep instinct told me not to tell him about Goblin.