Interconectivity between access points

I am kinda new to RouterOS and am not sure about some of the features and if what I desire can be done. Currently from our store there is a 5.8 link to the tower. From that tower another 5.8 to two different towers. I was wondering if the last two towers could be connected somehow that it is all one big link to the point that if 5.8 link 1 goes down tower 1 could get its internet through tower 2 through the link it has with the same tower.

see image:

I would like to get some help on how to properly set everything up so that no matter which link goes down the radio can route back to the main tower via the other secondary tower.

Currently tower is a 10.1 base, tower1 60.1 base ip and tower 2 is 80.1 base ip.

Thanks for any help provided.

if you are using separate interfaces for main and backup link use OSPF

/route ospf

that should do the trick quickly