Complications

"What are you doing? Just change," Pearl said.

"Yeah, but how?" Whisker asked.

"What do you mean how? You should know how. It's instinctive. Just… change!" Pearl wasn't the best at explaining it, but Alex felt Whisker should've understood.

Whisker tried to 'just change', but it wasn't working. "I can't do it," he said. "I can't change."

"It's so easy though," Pearl said, showing off his own transformation. His human body glowed brightly for a few moments before it changed shape, growing larger until he was a White Tiger nearly double Alex's height. 

Momo was unsettled by Pearl's appearance. The size simply scared her quite a bit as he looked so young and weak as a human.

Whisker looked at Pearl and forced himself to change once again. "It's not working," he said after failing once again.

Alex frowned for a moment. "Can you change your size?" he asked.