You will find that this activity book has a good balance of easy and hard puzzles.
Item Tag: Robert E. Howard
-
COMPLETE ILLUSTRATED CHRONICLES OF CONAN Robert E Howard Faux Leather Bound
The illustrated edition makes complex ideas much easier to understand.
-
COMPLETE ILLUSTRATED CHRONICLES OF CONAN Robert E Howard Faux Leather Bound
A nice touch in this activity book is the bonus content accessible online.