Hidden Expedition: Smithsonian Castle: Chapter Three: Lecture

Our Hidden Expedition: Smithsonian Castle Walkthrough will guide your steps as you explore the Smithsonian Castle, investigating an anomaly that's be reported there. Trust our detailed directions, custom marked screenshots, and simple solutions to all the puzzles you'll encounter as you follow the clues to unlocking the secrets of time travel in this exciting hidden object adventure game!


  • Collect the fact card and the broken plaque piece; click the drawer open.
  • Collect the note and the quartzite flint.
  • Move to the right.



  • Select the lighter to illuminate the scene.
  • Click the curtains.
  • Click the hidden objects area.



  • Find the items.
  • Collect the mortarboard.



  • Select the brush to sweep the dust away.
  • Collect the plaque half.
  • Move down once.


Steel Comb

  • Click the bag open.
  • Collect the note and the steel comb.
  • Place the mortarboard onto the bust; collect the glass rod.
  • Move to the left.



  • Select the quartzite flint and use the steel comb on it; receive the flint steel.
  • Zoom into the framed portrait; collect the note.
  • Zoom into the disc; collect the note and 1 /3 old photographs.
  • Place the glass rod; receive the electrified rod.
  • Zoom into the stove; collect 2 /2 caduceus.
  • Click the stove door and use the flint and steel to ignite the fire.
  • Collect the fact card and the weather vane top.
  • Move to the Gallery.



  • Insert the Caduceus; click the box open.
  • Collect the brass flower and the canvas.
  • Zoom into the window.
  • Select the electrified rod to collect the paper pieces.
  • Select the weather vane to collect the resin in plate.
  • Assemble the pieces of paper; collect the oscillator plans.
  • Move down once.



  • Insert the brass flower; collect the ladies’ fan.
  • Move to the left.



  • Place the oscillator plans down.
  • Select the fan to stoke the fire in the stove and insert the plate with resin to create and collect the liquid resin.
  • Select the liquid resin to mend the broken plaque piece and the plaque half; receive the plaque.
  • Move down once.



  • Click the bust 2x’s.
  • Place the plaque; collect the copper cylinder.
  • Move to the left.



  • Place the copper cylinder onto the burner.
  • Select the spring and 2 parts; place them onto the cylinders to trigger a mini game.
  • Solve the game by connecting the tiles using the number of lines as shown in the discs.
  • Move to the left.



  • Select the canvas to repair the painting.
  • Collect the note and 1 /2 wooden tea sets.
  • Collect the oil can.
  • Collect the fact card; insert the megatherium badge.
  • Collect the chalk.
  • Move to the right.



  • Speak to the man.
  • Click the curtain to reveal the hidden objects area.
  • Zoom into the desk; click the note and insert Sarah’s bracelet.
  • Collect the music box and the wooden decoration.
  • Zoom into the table; collect the forceps.
  • Zoom into the doll.
  • Select the oil can to lubricate and collect the wooden wheel.
  • Click the hidden objects area.





  • Find the items.
  • Collect the atlas figurine.
  • Move down once.



  • Place the atlas figurine beneath the cart and attach the wooden wheel.
  • Click the cart.
  • Move into the Chemistry Lab.



  • Click the hidden objects area.
  • Find the items.
  • Collect the small weight.



  • Click the note aside.
  • Collect the roller handle using the forceps.
  • Collect the fact card.
  • Insert the wooden box decoration.
  • Assemble and collect the stethoscope.
  • Collect 2 /3 old photos.
  • Move ahead.