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The Castle ConundrumFranklin W. Dixon

Mystery and suspense

The Castle Conundrum

by Franklin W. Dixon

Book 168 of the The Hardy Boys Mystery Stories series

Frank and Joe Hardy become involved in a case centered on a conundrum inside or around a castle. The brothers investigate old architecture, hidden spaces, and stories that conceal present motives, trying to separate genuine evidence from distractions created by whoever wants the truth concealed. As the danger increases, they rely on teamwork, quick thinking, and their willingness to follow clues into unfamiliar situations. Franklin W. Dixon’s Hardy Boys adventure mixes castle mystery with the series’ fast-paced juvenile detection, giving its central gimmick a practical criminal mystery for Frank and Joe to unravel.

Paired for this story

Dark Mocha Cocoa + Earl Grey Gin Fizz

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At a glance

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Spice0 of 5
Suspense3 of 5
Creepy1 of 5
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No surprises at chapter twelve

Content notes

Violence, weapons, and peril · Mild frightening/intense material

Alcohol-Free Pour

Dark Mocha Cocoa

Rich coffee suits an evening of clues and clever sleuthing.

How to mix it

  1. Whisk the cocoa and sweetener into the hot liquid until smooth. Add remaining flavorings, heat until steaming, and pour into a mug. Add any listed topping.
  2. Garnish: As listed.
  3. Glassware: Mug.
21+

Cocktail Pour · 21+

Earl Grey Gin Fizz

For adults of legal drinking age. Please drink responsibly.

A mellow tea pour suits an evening of clues and clever sleuthing.

What you'll need

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How to mix it

  1. Shake gin, tea, lemon juice, and simple syrup with ice. Strain over fresh ice and top with soda water.
  2. Garnish: Lemon twist.
  3. Glassware: Collins glass.

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