bike: schwin high timber 2.6 fs
year: no idea

problem: broken spokes

a woman stored this in my mothers basement for a few years. condition is new. she gave it to my mom recently. i wanted to get it ready for my wife so i pumped up the tires and rode it for a few miles and all was perfect. i left it in the backyard for a few days then moved it to the basement today. 2 spokes were broken. they broke while sitting. no way i would not have noticed while riding. they are noisy

1. spokes are seperated by 3 good spokes
2. both go to the left side of the hub
3. wheel is built 3 cross
4. front wheel

i realize this is a low end bike but what the hell.

as always thanks for your help