I had forgotten that. I was imagining the pillum of fire from earlier in the conversation burning all who hear the animal's howl.
You know there is the example of Inscription on the soul which is a minor(? serf's parma) virtue that allows the enchantment of a living thing as one's talisman. This would argue against being able to do this without a virtue.
Inscription on the soul does NOT enchant the body. It enchants the soul/spirit. A very important distinction if one tries to become a living ghost.

Erik Tyrrell:You know there is the example of Inscription on the soul which is a minor(? serf's parma) virtue that allows the enchantment of a living thing as one's talisman. This would argue against being able to do this without a virtue.
Inscription on the soul does NOT enchant the body. It enchants the soul/spirit. A very important distinction if one tries to become a living ghost.
The text says it does.
The magus’s spirit and body [emphasis added] are opened initially with 15 pawns of vis (as if “bone and flesh” and “huge” Size in the Material and Size table), requiring a Magic Theory score of 8.
But the breakthrough part is the "spirit" part, right?
I stand corrected. However as Xavi says, the special part is the spirit IMO, not the body.

But the breakthrough part is the "spirit" part, right?
Sure, but the path through the spirit, or soul, is through the body, I think.
I remembered it being the spirit OR the body, so I checked.
In the first lines of the virtue's description, p69, it says: "This Virtue lets the magus enchant his spirit or body as his talisman".
This has not been errataed.