At a glance
The Mark on the Door
Mystery and suspense
The Mark on the Door
Book 13 of the The Hardy Boys Mystery Stories series
A mysterious mark on a door becomes an important clue when Frank and Joe Hardy investigate suspicious activity around Bayport. The symbol appears to identify a place, person, or target, but understanding who made it and why requires tracing its connection to a broader scheme. The brothers’ curiosity alerts dangerous people that the mark has been noticed. Franklin W. Dixon turns a small visual clue into the entrance to a larger Hardy Boys mystery involving secrecy, coded meaning, and criminals who would prefer the door remain closed.
Paired for this story
Jump to the pours ↓Paris Pink Lemonade + Manhattan
Choose your bookseller
Find the Book
Print retailers offer a search when an exact edition is unavailable. Kindle links open a specific edition. Audiobook links may open an edition or a search.
Affiliate disclosure: As an Amazon Associate, Book Bartender earns from qualifying purchases. Bookshop.org links also earn us a commission on qualifying purchases. Your price is not affected. Read the full affiliate disclosure.
No surprises at chapter twelve
Content notes
Violence, weapons, and peril · Mild frightening/intense material
Alcohol-Free Pour
Paris Pink Lemonade
A bright, refreshing sip suits an evening of clues and clever sleuthing.
What you'll need
As an Amazon Associate, we earn from qualifying purchases.How to mix it
- Fill a glass with ice, add pink lemonade, top with sparkling water, and stir gently.
- Garnish: Lemon wheel.
- Glassware: Highball glass.
Shop glassware & tools
We earn a commission from qualifying purchases through these Amazon links, at no extra cost to you.
Highball glass ↗Cocktail Pour · 21+
Manhattan
For adults of legal drinking age. Please drink responsibly.
A warming pour with a sharp edge suits an evening of clues and clever sleuthing.
What you'll need
- 2 oz rye whiskey
- 1 oz sweet vermouth
- 2 dashes aromatic bitters
- Ice
How to mix it
- Stir with ice until chilled and strain into a chilled coupe.
- Garnish: Cocktail cherry or orange twist.
- Glassware: Coupe.
Shop glassware & tools
We earn a commission from qualifying purchases through these Amazon links, at no extra cost to you.
Coupe glass ↗Set up the bar cart
Shop the Barware
Find the glasses and tools for your next pour.