NEW: Introducing Tap. Addictive chat stories for your 📲 Now in 10 languages
Blue Hearts (Undertale and Percy Jackson CrossOver)

Blue Hearts (Undertale and Percy Jackson CrossOver)

19.9K Reads 783 Votes 42 Part Story
Someone By Unknown_Collections Completed

An Undertale x Percy Jackson/HoO crossover fanfiction.
  What happens after your favorite monsters from underground reached the surface and climbed down Mount Ebott? Frisk couldn't resist having another adventure on the surface.
  After the war with Gaea ended, the Seven thought they could rest but instead the gods gave them a new quest. 
  Will this be a good thing to the world or will this be chaos?

Disclaimer :
• Percy Jackson/ Hoo belongs to Rick Riordan
• Undertale belongs to Toby Fox
I do not own anything else besides the plot.

- - May 18
When did Tori start making blue cookies? I thought that was only Sally.
KeilaNinja KeilaNinja May 16
Omg!!! I love you !!! Please please dont stop writting this Its amazing! You are amazing! Just please continue
B00K_ADDICT05 B00K_ADDICT05 Feb 08, 2016
FÜCK YEAH Ive been waiting for this kind of crossiver all my life!
goddess_of_annoying goddess_of_annoying Jun 30, 2016
Right now this seems to be the first Pjo/UT that isn't crap on the first chapter. Trust me. I scoured FF.N and AO3 it was hard finding anything here on Wattpad.
BookLoverNightgale13 BookLoverNightgale13 Nov 06, 2016
                              A Pjo/Undertale Crossover!!!! Skdbwivfiejdiehirjeifhwifjwibfoshfiehfiehfie I'm so Happy :'D
Dragon_Writer993 Dragon_Writer993 Mar 11, 2016
I love this story
                              I want to vote, but Wattpad isn't letting me