Essex was his own undoer.

In the next apartment tranquilly slept the disturber, the trespasser in the fields of memory, the undoer of a long-wrought love.

An old-time Irish rage suddenly welled up in his bosom as he contemplated this jaunty, sophisticated undoer of his daughter's virtue.

We shall feel the fire of the divine charity: we shall be co-workers with His grace, and not undoers or spoilers of it.

"Now, then, the name of our undoer?"