I was confused reading the blurb on Audible as Hastings is mentioned although he doesn’t actually appear in this story.
The Mystery of the Spanish Chest is narrated excellently as always by Hugh Fraser.
It was released on Audible in June 2020 and published by HarperCollins
Perusing the morning paper Poirot’s attention was caught by the headlines… SPANISH CHEST MYSTERY. LATEST DEVELOPMENTS.