Devilвђ™s Mark By Lark Taylor -

The bond between the demon brothers as they navigate their new lives topside. Critical Reception

Lucifer is demanding his sons return to Hell. Devil’s Mark by Lark Taylor

Readers and reviewers from Goodreads and Amazon generally praise the book for its: The bond between the demon brothers as they

Cal places a magical mark on Oscar's forehead to claim and protect him, a unique world-building element that signifies their bond. Key Characters putting Oscar in danger.

The narrative follows their "fated mates" connection while external pressures mount:

Headless bodies are being left in Cal's bookshop by an unknown demon, putting Oscar in danger.