"There are some things man was not meant to know," the Mouser said in a most portentous voice.

Javid asked, his voice abruptly formal and portentous.

"There can be only One," he said, making his voice solemn and portentous.

"Come on in the library," he said to Judy in a portentous voice.

A heavily portentous voice said, "The prisoner may approach the bench."

'Not one course left upon another,' murmured Shiv in a portentous voice.

And from time to time a portentous voice delivers the countdown to the one-finger handstand.

Trewan said in a portentous voice, "That is menacing news."

He spoke in a portentous voice.

Who is this portentous voice?