Who was the main character in Arachne

Iam awful at english and am so confused sos ignore the completely wrong diagram above

Identify whether each detail takes place in the story “the adventure of the speckled band” or in its film adaptation, the speckled band. roylott has a baboon and a leopard, which he brought from india. holmes and watson operate out of their shared apartment at 221b baker street. roylott has a baboon and a cheetah, which he brought from india. holmes and watson operate out of a fancy office with modern conveniences, such as an intercom.

Apart from this length, what else makes a short story different from a novel