Composite readings

Composite Mercury to the Midheaven

A composite chart is built from the midpoints between two people's charts, so it is one chart for the pair rather than a chart for either person. These readings say what a placement in it stands for in a pair's shared chart.

Together

Composite Mercury conjunct with the Midheaven
The pair's standing is tied to what it says, as its thinking and its public direction share one spot. Messages, plans and ideas tend to double as statements of its aims.
Composite Mercury in an easy aspect with the Midheaven
The pair's standing is tied to clear, shareable ideas, and its way of thinking feeds its goals. Plans tend to be easy to explain, and talk and direction support each other.
Composite Mercury in a hard aspect with the Midheaven
How the pair thinks and talks and the direction it aims at do not quite line up. Its words may say something a little different from its public aims, or more, or less.

None of this is a verdict. A single placement never describes a whole relationship, and astrology is a tradition of interpretation rather than a body of established fact.