Weekly Book Quiz: Special Theme= Percy Jackson and the Olympians/Heroes of Olympus Series

1) Which of these two are not a couple? 
a) Piper and Jason
b) Percy and Annabeth
c) Nico and Hazel
d) Grover and Juniper

2) Who is Luke's mother?

3) Piper is the daughter of what Greek Goddess? 

4) Who is Reyna? And who is her sister?

5) Who is Thalia?