As others have highlighted, the background of Irish myth and legend make this an interesting read. However, I found the book very episodic, a series of incidents that were each resolved in a similar manner, by the assistance of outside agents. As such I found it repetitive and a bit tedious in the middle. The characters are humorous, but do not develop or really engage the reader, especially as many are almost like stereotypes from fairy tales. Overall, not bad, but if you like this sort of book, The Chronicles of Prydain, written by Lloyd Alexander, and starting with The Book Of Three, do something similar but with Welsh mythology instead of Irish, and are infinitely better in terms of structure, character and entertainment value.