Exodus 8:14 KJV

And they gathered them together upon heaps: and the land stank.
Exodus 8:14, King James Version

In context

13 And the Lord did according to the word of Moses; and the frogs died out of the houses, out of the villages, and out of the fields.

14 And they gathered them together upon heaps: and the land stank.

15 But when Pharaoh saw that there was respite, he hardened his heart, and hearkened not unto them; as the Lord had said.