Asseiceira

Keep on the paved road out of town, it will rejoin the N110. From here to Tomar things can get a bit hairy, so be on the lookout for arrows.

Stay on the N110 until the first roundabout at a point where it joins the larger A13; at this point you cross under the A13. Once on the other side, at the roundabout, the basic strategy is to keep straight on uphill (towards the "Zona Industrial") rather than turning right to stay on the N110 (though if you did that you would eventually arrive to Tomar, so don't fret). On your way up the road will level out and cross over the railway which parallels the N110 into Tomar. 

Immediately after crossing the railway, look to your right for a dirt trail and when you spot it, turn right and follow it. At this point the railway is to your right, and beyond it is the N110. You will pass a few small hamlets strung along the road before rejoining the N110 into Tomar.