...
The transformation was not complete, he realised, as she stepped from the booth. She still looked vaguely human - if you could ignore the tentacles, the blue-tinged skin and the three heads. She staggered towards him her tentacles reaching for him.
"You!" she managed to spit out from the middle head - the one that still resembled his wife the most. "You tricked me!"
"Darling," he said, stepping back and crashing into the laboratory table behind him, sending glass vials smashing to the floor. "There seems to have been a misunderstanding, a..." he reached for the word. "A miscalculation, perhaps."
"You tried to change me," she croaked wide eyed as she brought her tentacled hand up to her middle face. The other heads looked around them. Perhaps they were still building connections with the main brain in her middle head because they all looked a little confused.
"I think if you just have a lie-down," he said, motioning to the sofa in the corner of the lab. "And take one of your tablets. You'll be bound to feel better in the morning."