The Thunderskin

"The Thunderskin is the Heart Relentless, who does not permit conclusion. With the Mother of Ants, he is among the chiefest Gods-from-flesh. He cannot be stilled; he demands the dance; he is beaten, like a drum. Red and blue are his colours. He is heard in the Wood below the world."

The Thunderskin, also called The Heart Relentless and The Vigilant Storm, is one of the Hours, associated with hour IV, or 4:00am. His Aspect is Heart. The Thunderskin was created by The Red Grail, who had grown jealous of the power of The Witch and Sister and sought to strengthen her dominion. She enticed a great musician to become one of her Names before flaying him. This probably corresponds with the Pine-Knight described in the Orchid Transfigurations, whose simultaneous gelding and flaying produced the Vigilant Storm, and with the myth of Marsyas described in Apollo and Marsyas. Due to the nature of his birth, scholars sometimes dispute whether The Thunderskin is a God-from-Flesh or a God-from-Blood.

In The Mountains... associates the Thunderskin with the Greek god Zagreus, a hunter who was dismembered by the Titans, rather than Marsyas.

According to The Morphy Codex and Against the Sisterhood of the Knot, the Thunderskin loved the Ring-Yew, and as a consequence of this was destroyed by the Grail in recompense for the killing of the Gods-from-Stone. However, he re-entered the House through the Peacock Door, which was considered rather scandalous. It is unclear whether this took place after his ascension, or if the books simply use "Thunderskin" retroactively to refer to the pre-ascension Name, in which case his destruction would be synonymous with his ascension.

The Thunderskin's origin is highly reminiscent of Attis, the mythological consort of the Phrygian goddess Cybele. Cybele is often associated with the Grail.

Books
The Velshorn Inscriptions

Those Who Do Not Sleep

The Morphy Codex

Against the Sisterhood of the Knot and...

In The Mountains...