Impatiently, and rang the doorbell again, pressing the button several times.
She heard a scratching at the door before it finally opened, finding herself face-to-face with a rather handsome but shy-looking young man in a lab coat.
"Dr Darren, I presume?" Katherine said, reading mental post-it note of the online advertisement stuck to her brain.
"Y-yes-s!" He stammered, obviously surprised. "P-plea-se, c-come in-n!"
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