Finn MacCoul and His Fearless Wife A Giant Tale of a Tale from Ireland by Robert Byrd

 I own Tomie dePaola's version of this legend. 

The giant Finn MacCoul lives with his wife Oonagh on Knockmany Hill. As a chieftan of the Fianna, the Irish people respect him. While building a bridge to Scotland, Finn encounters a fierce Scots giant, Cucullin. Cucullin's plan is to "make paste of" Finn. Thankfully, Oonagh creates a clever plan to subdue Cucullin.

I love the big vibrant the illustrations.  

Read also Fin M'Coul: The Giant of Knockmany Hill by Tomie dePaola to compare. 

Consideration: Fairies and magic are the source of strength and aid in this story.

-Borrowed from the library.