Free The Mystery in Dracula's Castle by Vic Crume

Leonard followed. Marsha Booth switched on the motor. "Bye!" she called.
    "See you next summer," Alfie grinned.
    Leonard only lifted his hand in a sad wave. "But Watson's my partner," he said in a whispery voice.
    "Bye!" the Wyndhams called after them. They watched the car move slowly down the street.
    "Hey, Dad! Look!" Jean cried out.
    Sheriff Wyndham tilted back his hat. "Well, I'll be darned! Looks like we're losing the town dog after all."
    Watson, at top speed and barking his finest, raced after the Booths.
    "Maybe they won't see him," Jean said anxiously.
    "See him! They'll hear him," the sheriff laughed. "Don't worry!"
    The two watched the Booth car slow to a stop. Leonard jumped out and swept up Watson in his arms. Then all three Booths turned to look back up the street. Three hands waved a happy, final farewell and there was a cheerful good-bye bark from Watson.
    The Wyndhams waved back. "There goes Trouble," the sheriff grinned.
    "There goes Watson, you mean, Dad. After all — "
    "After all, what?" her father asked.
    "After all," Jean said softly, "who ever heard of a Watson deserting a Sherlock Holmes? Especially the one who solved the mystery in Dracula's Castle?"