Betrayed by a Shadow by Raven Dean, 1890.

The keeper of the exclamation point is actually Lady Question Mark.  From The Riddle by Walter Alexander Raleigh, 1895.

Mother Earth beseeches Father Time to spare her another year, from The Carolyn Wells Year Book of Old Favorites and New Fancies for 1909.

From Kunst, Krieg und Krieger by Konrad Escher, 1917.

"The poison bubble," from St. Nicholas magazine, 1903.

From Rhyme or Reason by Nicholas Aufrere Fenwick, 1900.

A toast to Mystery!  The caption reads, "The wine is a mystery." From The Secret of the Court by Frank Frankfort Moore, 1895.

"It's the oldest trick in the book, hidin' in a wagonload o' hay!"
—Henry Clark, The Book That Proves Time Travel Happens

You've heard of the "power of suggestion," but did you know that power is exerted via levers?  From Psycho-Therapy in the Practice of Medicine and Surgery by Sheldon Leabitt, 1903.

From Die Märztage des Jahres 1798 by Gustav Adolf Badertscher, 1898.

A finish is never fully the end -- it's just fin (from the Latin for "end") ish.  From Wheeler's Guide to Weymouth,1882.

From Physical Culture, 1899.

From Chap-Books of the Eighteenth Century, 1882.   Also very much of interest: The Young Wizard's Hexopedia and A Snowball's Chance in Hell.

From The Shadow on the Blind and Other Ghost Stories by Louisa Baldwin, 1895.

From Die Märztage des Jahres 1798 by Gustav Adolf Badertscher, 1898.

"Half-a-century of pain," from The Story of a Tour by William Scriven, 1898.

From The Bab Ballads, written and illustrated by William Schwenck Gilbert, 1898.

"She's dressed in snow!"  From The Paradise of Birds by William John Courthope and illustrated by Lancelot Speed, 1889.

An angel in the seventh heaven is said to have a rooster's shape (as per Romans de Mahon), but which is it — a rectangle or a triangle?  From A Little Journey Among Anconas by Cecil Sheppard, 1922.

"What art thou??"  From Valdar the Oft-Born by George Chetwynd Griffith Jones, 1895.

"The point bears repeating: So far as history knows, Plato invented Atlantis out of whole cloth."
—Foundations of Atlantis, Ancient Astronauts and Other Alternative Pasts, 2015

Death's crown is not always depicted in the correct orientation.  This is it.  From Die Märztage des Jahres 1798 by Gustav Adolf Badertscher, 1898.

Here's the imp of being out of paper.  You didn't think paper disappeared on its own, right?  From Wellesley Magazine, 1897.  This should also be of interest: How to Believe in Your Elf.

It's only funny if the man in the moon laughs too, right?  (Thanks, Jonathan Caws-Elwitt!)  From The Literary Digest, 1890.

"One out of suits with fortune," from Paul Jones's Alias By Henry Herman, 1890.

"Read that which is now before is," from Jacob Faithful by Frederick Marryat and illustrated by H. M. Brock, 1895.

From The Story of Prince Hildebrand and the Princess Ida, written and illustrated by Thomas Strong Seccombe, 1880.

We hear a lot about subsconsciousness, but here's what it looks like.  From Psycho-Therapy in the Practice of Medicine and Surgery by Sheldon Leabitt, 1903.

From Prof. Oddfellow's sketchbook:

The Hierarchy of Holy Smokes: Burning Ones, Glowing Ones, Hazy Ones, Obscured Ones, and On High.

Here's a bell-ringer from The Scripture History of Idolatry by Joseph Frederick Berg, 1838.

From Perin's Science of Palmistry by Carl Louis Perin, 1902.

Here's a fairy chopper for slaying giants, from Staffordshire Knots, 1895.  But if you're unsure it's the right tool for you, see How to Believe in Your Elf.

From Chap-Books of the Eighteenth Century, 1882.

Revealed: one of the ways lost works of art find themselves lost in the first place.  From Gazette des Beaux-Arts, 1859.

From the Arbutus yearbook of Indiana University, 1894.  Also very much of interest: The Young Wizard's Hexopedia and How to Hoodoo Hack a Yearbook.

"And always remember to use safety glasses or goggles." —Mark Montano, The Big-Ass Book of Crafts 2

From Drawing-Room Plays, selected and adapted from the French by Lady Adelaide Cadogan and illustrated by E. L. Shute, 1888.

From Logs for the Christmas Fire by James Harris, 1876.  This will also be of interest: The Collected Lost Meanings of Christmas.

From Sunset Rhymes by Seth Sturges, 1901.

You've heard of going out of the frying pan and into the fire, but here's how you get into the frying pan to begin with.  The caption reads, "Received into the hot frying-pan."  From Jacob Faithful by Frederick Marryat and illustrated by H. M. Brock, 1895.