Frank Carlson Library

Frank and Joe feel that the solution to a counterfeit case and one their father is investigating is hidden in an old mill that is used for making secret parts for missiles.

An anonymous diary is a mystery with handwriting that is difficult to decipher. It is filled with technical drawings and chemical formulas. Was the destructive explosion an accident or an act of revenge?

Nancy Drew travels to Peru to solve a mystery involving a long-lost treasure and a crossword clue carved into an ancient wooden plaque.

A tiny submarine that flies through the air... A half-dollar worth five thousand dollars....Some tipsy birds.... A world that fits in the palm of your hand.... And a case that turns out to be a rreal can of worms! These are just some of the ten brain-twisting mysteries that Encyclopedia Brown must solve by using his famous computerlike brain. Try to crack the cases along with him.

You are cordially invited to attend the grand opening of Sinclair's Department Store. Enter a world of bonbons, hats, perfumes and mysteries around every corner. Wonder at the daring theft of the priceless Clockwork Sparrow! Tremble as the most dastardly criminals in London enact their wicked plans! Gasp as our bold heroines, Miss Sophie Taylor and Miss Lilian Rose, break codes, devour iced buns and vow to bring the villains to justice ... A splendid...

A biography of the Scottish immigrant barrel-maker whose side line detective work developed into the oldest and most famous detective agency in the United States.

Thirteen-year-old Ruby, a genius code-cracker and daring detective, gets an anonymous call setting a challenge that leads her to the headquarters of Spectrum, a highly secret anti-crime agency that needs her help to crack a code, but soon Ruby uncovers dastardly plans of the Fool's Gold Gang.

Elementary school detective Moxie McCoy looks for a missing school mascot and a new best friend, with the help of her annoying little brother.

In late nineteenth-century London, fourteen-year-old Enola Holmes, much younger sister of detective Sherlock Holmes, turns to Florence Nightingale for help when her investigation into the disappearance of a Crimean War widow grows cold.

A Scandal in Bohemia -- The Red-headed league -- A case of identify -- The Boscombe Valley mystery -- The Five orange pips -- The Man with the twisted lip -- The Adventure of the blue carbuncle -- The Adventure of the speckled bnad -- The Adventure of the engineer's thumb -- The Adventure of the noble bachelor -- The Adventure of the beryl coronet -- The Adventure of the copper beeches.