Still think this is a possibility:
What if NB fell into the river and was abducted? "How?" do I hear you say? Well, imagine the following….
1. NB somehow ended up in the river. She could have tripped or lost balance for whatever reason as has already been discussed multiple times on here.
2. NB climbed out of the river and was standing in shock wondering what to do when a 3rd party arrived on the scene, possibly after hearing a splash and or a scream.
3. The third party could have easily gone to NB with no ill intention, simply wanting to help, saying “here come with me, let’s get you somewhere warm and sort you out”
4. NB would have been in shock and likely not remembered or been bothered about her phone and would have likely welcomed the assistance, walking away from the bench without concern.
5. NB would have not been clear where she was going and could have simply thought to leave Willow in the field saying “Dont worry, I’ll be back in 5 minutes”. She also would have been so cold she may not have been thinking to clearly about her dog. She could also have tied the dog up but she broke free later.
6. NB could have been led to a nearby property for a change of clothes or similar. It could be at this point that the 3rd party made a play for NB that could have been rejected, or sensed an opportunity to take advantage of NB in this state.
7. NB could be held captive and then moved from the property at a later date, or is still there.
I feel this theory is as possible as any. Most say that a planned abduction would be unlikely as it’s not a particularly easy place to do it. However if someone came across NB in this vulnerable state a crime of opportunity could have occurred as I’ve outlined above, with plenty of slightly alternate versions also possible.
Just thought I’d post this as it makes a change from non stop bickering about whether the phone was on the bench or next to it.
All this is just my opinion, and I’m simply presenting an alternate theory that I don’t believe can be ruled out based on the evidence at hand.