SPRV - I tear up everytime I think of your posts. This must be such a difficult time for you, yet through this difficulty something wonderful has been presented to you - Henry's sister. It sounds like at some point you do want to adopt Rana (you wrote "I also don't want to let go of her because she is Henry's sibling") There is no way you could ever replace or forget about Henry - that won't change whether you adopt Rana in 3 days, 3 weeks, or 3 months. But as GreysAreGreat noted, the breeder sounds wonderful and I'm sure they wouldn't mind holding onto her if you need more time. In the end I think you should trust your intuition and your heart, it doesn't matter what other people think or what you think 'should' be done. You gave Henry everything, I'm sure he would be delighted that you would be doing the same for his sister. It really is amazing, I mean what are the odds that of all the dogs that have come from that breeder, that it is Henry's sister that was returned at this particular time?!