Rick Riordan said this quote

We couldn’t have done it without somebody else! We couldn’t have won this race or got the Fleece or saved Grover or anything! We owe our lives to Tyson, Percy’s…’‘Brother!’ I said, loud enough for everybody to hear. ‘Tyson, my baby brother.’Tyson blushed. The crowd cheered. Annabeth planted a kiss on my cheek.