Examine the gargoyle and use the CANNONBALL on it; take the HANDLE (N).
Examine the carriage door and place the HANDLE on it; pull the handle. Take the BAT (O).
Zoom into the book; take the TONGS (P).
Go right on the ledge.
Examine the drain spout and use the TONGS to get the PUZZLE PART 2/2 (Q).
Examine the trunk and place the 2 PUZZLE PARTS on it to trigger a puzzle (R).
Turn the squares to slide the handle to the open trunk.
See screenshot for solution (S).
Examine the opened trunk to access a HOP.