Who returned Sydelle's notebook? Chapter 11

Mr. Hoo returned the notebook.

Her self-congratulatory pose was too much for Mr. Hoo. Grunting loudly, he squeezed out of the booth and slapped the
shorthand pad on the counter.

Mr. Hoo was unable to get any information because the notebook was written in shorthand, Sydelle's own personal kind of shorthand.

“I found it on a table in my restaurant this morning. You can believe me or not, I really don’t care, because those notes you so selfishly dangled under our noses are completely worthless. My partner knows shorthand and she says your shorthand is nothing but senseless scrawls. Jibberish.”