The picture isn't in the archives Maggie, I've just found it online. They must be the SAME shoes mentioned by AE - see the following .......
AE spoke about the 'shoes' as if they were Sheila's but they can't have been Sheila's, no way. How did they get there, I wonder?
Why did she find it so strange that Sheila didn't sleep in the bed by the door? AE is such a Miss Marples, d'you think she thought that was a clue??