I've got CdC and although some of the blooms look similar it is not it. CdC starts off yellow then gradually fades through pink to white. Some of the blooms on CdC have more petals than others but the mystery rose has blooms that are all the same. Perhaps it isn't an Austin? I've looked through their website and only Desdemona and The Shepherdess are similar in some respects but it is not them either.
