No. V.-THE ADVENTURE OF THE SINISTER STRANGER "IT'S been a darned dull day," said Tommy, and yawned widely. "Nearly tea-time," said Tuppence, and also yawned. Business was not brisk in Blunt’s Brilliant Detective Agency. Albert, the office-boy, entered with a sealed package, which he laid on the table. “The Mystery of the Sealed Packet," murmured Tommy. “Did it contain the fabulous pearls of the Russian Grand Duchess, or was it in reality an infernal machine destined to blow Blunt's Brilliant Detectives to pieces?” “As a matter of fact," said Tuppence, tearing open the package, “it's my wedding present to Francis Haviland. Rather nice, isn't it?” Tommy took a slender silver cigarette-case from her outstretched hand, noted the inscription engraved in her own handwriting- “Francis fro

