House of Hades by Rick Riordan

.    Annabeth and Percy are scared. They have fallen into
Tartarus and are trying to locate the Doors of Death and escape so they can help
their friends stop the evil earth goddess, Gaea from awakening.The prophecy of
the seven has worried them all. The remaining demigods on the ship, Hazel, Frank,
Jason, Piper, Leo, and Nico could try and stop Camp Half-Blood and Camp Jupiter
from going to war, or they could try to find the House of Hades and rescue Percy
and Annabeth from Tartarus. 

I rated this book five stars because I enjoyed reading it. This book was really
interesting. I really like adventure and fantasy books so this was a good find for me.
This book is unpredictable and nothing goes the way t's planned.  There are a lot
of things happening at once. This is a multi-perspective book and the fourth book
out of a series of five so read the other books before this one. 

I recommend this book to people who like action, adventure and greek mythology
because in this book the people are living in a world with monsters, gods, and titans.
If you liked Harry Potter and/or Percy Jackson you will probably love this book.
--Review by R. Mizyed