Sketches by the Serpentine — Rosanne E. Lortz

When Felicity Comfort meets a mysterious artist by the Serpentine in Hyde Park, she has no idea just how moneyed, miserable, and notorious the gentleman actually is. But even when she discovers the truth about the Earl of Anderly, she cannot help feeling a mysterious urge to seek him out....

Magnus Blackstone, the Earl of Anderly, has retreated from society ever since the horrific incident that destroyed his life five years ago. But when a vivacious young lady and her ill-behaved pug invade his solitude, he realises that life might have more colour to it than a painting from his studio and that what seems like endless ashes can still be exchanged for beauty.

Sketches by the Serpentine is a Regency novel that can be read as a standalone but is best enjoyed after reading A Brother's Wager.