The last horse is located on the shield of a knight on the bottom portion of page 11 in front of the scaffolding.
111!!!!!
A small sack of mail
Look at what the boat is standing on.
It is at the top of pg 20 at the very end of the right
Under the ruler, there is a domino piece with double nines on it.
at the bottom of the page in a little crook in the meadow where the cows roam
Under the ruler, there is a domino piece with double nines on it.
On a small tile with horse on right edge of pg
The cat is riding a yellow bike at the top of the page
Whoever asked this should get the shyt smacked out of them just because you asked this
Behind the masts of the ship on the window sill.
Tiny globe near right edge of pg 9