La obra maestra vs The progress of Julius: Which Should You Read?

Both live on shelves: Thriller

La obra maestra

La obra maestra Daniel Silva ★★★★☆ 3.8 Moderate Find on Amazon

The progress of Julius Daphne du Maurier · 1933 ★★★★☆ 3.9 308 pages · ≈ 5 h 42 m · Challenging Find on Amazon

The verdict

Ratings are close: 3.8 vs 3.9 — either is a safe pick by score.
La obra maestra is the easier read (Moderate), The progress of Julius more demanding (Challenging).