Shhh! It's a Surprise! is a pop-up and flap book.
Thomas and his friends are preparing for Sir Topham Hatt's birthday but they must not tell him otherwise they will ruin the surprise.
- Thomas (does not speak)
- Gordon (does not speak)
- James (does not speak)
- Percy (does not speak)
- Toby (does not speak)
- Sir Topham Hatt (does not speak)
- Cranky (does not speak)
- Bertie (cameo)
- Harold (cameo)
- Bulstrode (cameo)
- Toby' sideplates are coloured red.
- James' wheels and smokebox saddle are coloured red.
- Gordon has a very wide boiler.
- The turntable is too small.
- The rails do not have nails.
- Percy's siderods are not drawn correctly.
- The window for Cranky's cab is missing.