Ghost Twins #3, Mystery On Walrus Mountain (1995)

Description

Hard to find, original book from 1995
#3 in the series, but can read as a stand alone story.

Synopsis –
Phantom twins Robbie and Beka try to help a visiting champion skier, Noah, overcome his fear of the slopes after breaking his leg. When the ghost dog and Robbie get sucked into Noah’s computer game, the twins must rescue them and convince Noah to face the mountain