Horizon of Darkness

Accompanied by Zeikin and a third party member (if no one volunteers, we'll take Arael, but for now, it's just a placeholder, I don't want to slow down the game), Nikta heads to the house of the missing alchemist.
I don't remember if we were told where this house is...

Pays silver from his pocket.

Well, basically, if Henry has the opportunity to join their group while his quest is active, he joins. If not, then it doesn't matter.