the_blood_of_olympus_-_rick_riordan

Kymopoleia turned on the giant. ‘I’m afraid that deal beats what Gaia has offered.’
‘Unacceptable!’ the giant bellowed. ‘You cannot trust this vile Roman!’
‘If I don’t honour the bargain,’ Jason said, ‘Kym can always kill me. With Gaia, she has no
guarantee at all.’
‘That,’ Kym said, ‘is difficult to argue with.’
As Polybotes struggled to answer, Jason charged forward and stabbed his javelin in the giant’s gut.
Kym lifted her bronze disc from its pedestal. ‘Say goodbye, Polybotes.’
She spun the disc at the giant’s neck. Turned out, the rim was sharp.
Polybotes found it difficult to say goodbye, since he no longer had a head.