The Past Mistake That Returned - Tommy & Tuppence Mystery

A single anonymous letter arrives at the Beresfords’ breakfast table, bearing the crest of their long-dissolved wartime office and only six words: “The past mistake has come back.” Drawn into a trail of vanished files, silenced witnesses, and old loyalties turned treacherous, Tommy and Tuppence uncover the ruin left by a forgotten betrayal. But as each clue reopens a secret from 1915, they learn that the real mistake wasn’t what was done in war—only what was left unfinished. 💬 Question for Listeners: If the past knocked on your door—would you open it… or burn the letter? #agathachristieaudiobooks #pastmistakes This is a fan-created story inspired by the timeless characters of Agatha Christie. It is intended solely for entertainment and is not affiliated with or endorsed by the original rights holders. All characters, names, and settings remain the property of their respective owners. This work is made with respect and admiration for the classic Tommy & Tuppence mysteries.