If an undefended attack's shadow effect gives the defending character poison, where does the poison go?

Question

Accepted Answer

If the enemy attacks a named character, the poison goes to that character even though the attack is undefended. Without a named target there is no defending character, so the poison goes nowhere.

The Lord of the Rings: The Card Game – Revised Core Set

If an undefended attack's shadow effect gives the defending character poison, where does the poison go?

The Lord of the Rings: The Card Game – Revised Core Set

If an undefended attack's shadow effect gives the defending character poison, where does the poison go?